Drawing Workbook For Engineering Drawing And Design_nodrm.pdf

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Dra wln§ Workbook for ,

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meerm and Design Fifth Edition

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Cecil Jensen

Jay

Former Technical Director

Professor and Chairman

R. S.

McLaughlin Collegiate and

D. Helsel

Department of Industry and Technology

Vocational Institute

Oshawa, Ontario, Canada

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California University of Pennsylvania California, Pennsylvania

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GLENCOE McGraw-Hill

New York, New York

Columbus, Ohio

Mission

Hills, California

Peoria, Illinois

Drawing Workbook

for Engineering

Drawing and Design,

Fiftli

Edition

Copyright ® 1997 by Glencoe/McGraw-Hill. All rights reserved. Except as permitted under the United States Copyright Act, no part of this work may be reproduced or distributed in any form or by any means, or stored in a database or retrieval system, without the prior written permission of the publisher.

ISBN 0-02-801881-8 Send

all

inquiries to:

GLENCOE/McGRAW-HILL 936 Eastwind Drive Westerville, Ohio 43081

Printed in the United States of

23456789

MAL

America

00 99 98 97 96

PREFACE This Drawing Workbook contains worksheets that present a partially

worked-out solution for assignments

in

each unit of

En^int'erins; Druuirii; uiui l)tsii(n. Fifth Edition, fvach work-

sheet has a

block and a relerenee number that reler to the

title

chapter and unit numlxT o\ the

text,

lollowini: the table o\

problem for the learning mater-

task of selecting the correct

There are sufficient drawing worksheets

ial.

mstmclor

fiexibility in

making assignments

ing assignments are included to thoroughly cover

elements of engineering drawings and the practices. In addition, a variety of

assignment, and also provide references to the appropriate

provided to accommodate individual differences

The drawmg problems contain both

U.S. customarv'

on high-qualit\ white

are printed

simulate drawings found

in actual

engineering practice. They

removal without tearing the

for easy

are also perlorated

pa|X'r \o

drawing assignment.

These worksheets have

a

number of

benefits. First of

all.

For instance, the

dents.

some of

preprinted, and

litle

the

blocks aiui borders are

drawing assignments are semi-

completed or have preprinted orthographic or

The worksheets

pictorial grids.

also assist students to correctly position their

drawings and locus the teaching unit. instructors time

all

their attention

We

on the key concepts within

estimate that these worksheets save

enough

to

The drawing assignments

worksheet assignments

in a drafting

program who are pursuing

other related careers will also benefit from this workbook.

to

this

Drawing Workbook provides

the

spend added time studying the material

involving the interpretation and understai^ding of engineering

drawing practices. in drafting will also find these

Supplementing

CAD

with these

sheets will provide the student the opportunity of covering

more

drafting theory and application as well as developing

essential sketching experience.

The positioning light

The

final

points on the worksheets are printed in a

drawing

will

when drawn over with

a

be the student's drawing

despite the aids printed on the sheets. Finally, the drawing

problem

is

also provided on the sheet. This

means

that the

student can set up a workspace without the inconvenience of

having

to

in

enhanced by providing

that are closely

to either the scale or in

order to

the

fit

coordinated with the

some dimensions were

often necessary

drawing on the worksheet.

Although most drawing problems are on drawing paper, vellum sheets are provided that students

at

the back of this

workbook so

can gain hands-on experience for drawing on

medium. The instructor can designate appropriate times when vellum sheets are to be used.

this

Solutions

Manual

for the instructor

ease

in

grading

is

available for the

presented on a .separate page for

is

assignments.

students'

For the textbook.

and Di'.sii>n. Fifth Edition, there is a comprehensive histnu tor's Management System available from Eni^ineerinii Dra\\ini>

Glencoe/McGraw-Hill. solutions.

It

contains

all

of the textbook drawing

These solutions are also available on the Instructor's Please contact your kxal Glencoe/McGraw-Hill

representative or the publisher for

Although

and Design.

this

workbook

Fifth Edition,

that follows current

is it

more

keyed

to

details.

Engineering Drawing

can be used with any good text

ANSI and ISO drawing

standards.

The

We

many

are grateful to the

Another advantage of these worksheets

inist that those instructcirs

and others

as useful as the textbooks.

who have

comments and

will find this

As always, we

suggestions.

that they are

Cecil Jensen

units in the textbook, thereby simplifying the

Jay D. Helsel

is

instructors

used

Engineering Drawing and Design and/or Fundamentals of Engineering Drawing o\er their very successful history. We

keep the textbook on the drawing board.

keyed with the

arc.

The under-

instructor will need to provide the text references necessary.

gray that will not be noticeable

pencil.

is

worksheets

textb<x)k.

Because these drawing problems were mainly

units.

CD-ROM.

Students planning a career sheets especially useful.

both stu-

designed for use on a B-si/e drawing paper format, changes

A

For these students,

for these

standing of reading assignments

workbook. Each solution

opportunity

in

cover 30 percent more teaching

matenal. Students enrolled

advanced problems arc

most cases, taken directly from the

text

ihey save drawing time for both the instructor and the stu-

basic

drawing

dents and programs

(decimal inch) and metric (millimeter) units of measurement.

The worksheets

all

latest

contents arc instructions that provide an overview to each

units.

permit the

that

Sufficient draw-

workbook

appreciate your

CONTENTS Preface,

Chapter

iii

I

Overview,

Worksheets, 27.

1.

Kn^inetTing (iraphics as a Lan^uat^e

— Measuring

Ref. Unit 1-4

Drafting Scales

Chapter 4

Basic Drartin^ Skills

Ref. Unit 4-1

Lettering

A-1

— — Inclined

..

B-1

..

B-2

Locating by Coordinates

..

B-3

Relative Coordinates

..

B-4

Absolute Coordinates

..

B-5

Polar Coordinates

..

B-6

..

B-7

..

B-8

..

B-9

Lettering

Vertical

— Patterns Linework — Inlay Designs Linework — Shearing Blank Circles and Arcs — Designs Circles and Arcs — Pawl Circles and Arcs — Anchor Plate Linework

Ref. Unit 4-2

Ref. Unit 4-4

Chapter 5

and Arcs

.\pplied

Theory of Shape Description

Ref. Unit 5-4

Ref. Unit 6-1

B-1 B-1 B-1

B-1

Geometry

Chapter 6

Ref. Unit 5-3

B-14

Irregular

Ref. Unit 5-5

Ref. Unit 5-2

B-1

1

—Straight Lines Applied Geometry —Arcs and Circles Applied Geometry— Polygons Applied Geometry —Template and Hook. Applied Geometry — Ellipses Applied Geometry — Helix and Parabola..

Ref. Unit 5-1

B-1

—Gasket No. Circles and Arcs —Gasket No. 2 Curves — Patterns Sketching — Lines and Circles Sketching — Structural Shapes Sketching — Shaft Support and Control Arm Circles

Ref. Unit 4-3

B-10 B-11

Applied Geometry

C-1

C-2

C-3 C-4 C-5

C-6

—Absolute Coordinates — Relative Coordinates Orthographic Representation—Two-Dimensional Coordinates.... Orthographic Representation— Three-Dimensional Coordinates. Orthographic Representation

D-1

Orthographic Representation

D-2

Orthographic Representation

Orthographic Representation Ref. Unit 6-2

Orthographic Representation

Ref. Unit 6-3

Orthographic Representation

—Corner Bracket —Location Block — Miter Lines — Surfaces

Parallel

D-3

D-4 D-5 D-6 D-7

and

Visible

D-8 Contents

v

Ref. Unit 6-4

— Hidden Surfaces and Edges —Control Block Orthographic Projection —Angle Stop Orthographic Projection — Guide Bar

Orthographic Representation Orthographic Projection

Ref. Unit 6-5

Orthographic Representation— Inclined Surfaces

D-12 D-13

(1)

Ref. Unit 6-8 Ref. Unit 6-9

Special

Ref. Unit 6-10

Conventional Representation

D-29

Ref. Unit 6-11

Conventional Breaks

D-30

Ref. Unit 6-6

Ref. Unit 6-7

Ref. Unit 6-12

Ref. Unit 6-14

Ref. Unit 6-15

Chapter 7 Ref. Unit 7-1

Ref. Unit 7-2 Ref. Unit 7-3

Ref. Unit 7-4

Contents

D-11

— Inclined Surfaces Orthographic Representation — Inclined Surfaces Orthographic Representation — Inclined Surfaces Orfhographic Projection — Base Orthographic Projection — Base Plate Orthographic Representation — Interpreting Drawings Orthographic Representation — Interpreting Drawings Orthographic Representation — Circular Features Orthographic Representation — Circular Features Orthographic Representation — Interpreting Drawings Orthographic Projection — Rocker Arm Orthographic Representation —Oblique Surfaces Orthographic Representation —Oblique Surfaces Orthographic Representation —One- and Two-View Drawings Orthographic Representation

vi

D-9

D-10

(2)

D-14

(3)

D-15

(4)

D-16 D-17

D-18

(1)

D-19

(2)

D-20

(1)

D-21

(2)

D-22

D-23 D-24

(1)

D-25

(2)

D-26

Views—Connector

D-27

D-28

— Locking Plate — Fixture Base Lines of Intersection — Cylindrical Surfaces Foreshortened Projection — Mounting Bracket Foreshortened Projection —Clutch Intersection of Unfinished Surfaces — Cutoff Stop Intersection of Unfinished Surfaces — Sparker Bracket

D-31

D-32

D-33 D-34 D-35

Auxiliary Views and Revolutions

—Angle Bracket —Angle Plate Primary Auxiliary Views—Statue Bases Circular Features — Link Multiple Auxiliary Views — Inclined Stop Multiple Auxiliary Views — Connecting Bar Multiple Auxiliary Views —Angle Stop Secondary Auxiliary Views — Dovetail Bracket Secondary Auxiliary Views — Pivot Arm Primary Auxiliary Views

E-1

Primary Auxiliary Views

E-2

Ref. Unit 7-5

Revolutions

Ref. Unit 7-6

Points and Lines

Ref. Unit 7-7

Planes

Ref. Unit 7-8

Visibility of

Ref. Unit 7-9

Distance Between Lines and Points

in

E-3 E-4 E-5 E-6 E-7 E-8 E-9

E-10

Space

in

E-1

E-12

Space Lines

E-13

Space

in

Ref. Unit 7-10

Edge and True View

Ref. Unit 7-11

Angle Between Lines and Planes

of Planes

E-14 ,

E-15

E-16

(hnpttr S

Basic I)inunsio^in^ Basic Dimensioning

Ref. Unit 8-1

— Notched Block

— Basic Dimensioning— Base Basic Dimensioning

Vertical

F-1

Guide

F-2

F-3

—Adjustable Sector —Bracket Dimensioning Common Features — Handle Dimensioning Common Features—Gasket Dimensioning Methods —Transmission Cover Dimensioning Methods—Adapter Plate

Ref. Unit 8-2

Ref. Unit 8-3

Ref. Unit 8-4

Dimensioning Circular Features

F-4

Dimensioning Circular Features

F-5

Ref. Unit 8-5

Limits

Ref. Unit 8-6

Fits

and Allowances— Inch

Fits

and Allowances

and Tolerances

F-1 F-1

and Allowances

Surface Texture

—Spindle

F-1

F-16

—Column Bracket

Chapter M

St'ctions

Ref. Unit 9-1

Full

Ref. Unit 9-2

— Slide Bracket Two or More Sections —Casing Two or More Sections — Housing

Ref. Unit 9-3

F-17

Sections— Shaft Base

G-1

Sections

G-2 G-3 G-4

Half-Sections— Step Pulley

G-5 G-€

Half-Sections— Step-V Pulley Ref. Unit 9-4

Ref. Unit 9-5

Ref. Unit 9-6

•

— Pipe Plug — End Plate Section — Flanged Coupling Section —Caster

Threads

in

Section

G-7

Threads

in

Section

G-8

Assemblies

in

Assemblies

in

Offset

Sections— Base Plate

Offset Sections

Ref. Unit 9-7

G-12

Ribs. Holes,

and Lugs—Two-Post Column Base

Ribs, Holes,

and Lugs

—Shaft Support

Ref. Unit 9-9

Spokes and

Ref. Unit 9-10

Broken-Out Section— Hold-Down Bracket

Ref. Unit 9-11

Phantom Section

G-1

—Chisel

G-16

Arms—Offset Handwheel

G-1

— Bearing Housing Phantom Section — Housing Section

—Slide Support and

G-1

G-19 G-20

Review— Domed Cover

Section Review

G-1

G-14

Revolved Section—Connector

Revolved Section

G-9 G-10 G-1

— Mounting Plate

Ref. Unit 9-8

Ref. Unit 9-12

F-9

F-12

Surface Texture— Link

Full

F-8

F-1

— Metric

Fits— Metric

Ref. Unit 8-7

F-7

F-10

Fits— Inch

Fits

F-6

G-21 Drill

Press Base

G-22

Contents

vil

Chapter 10

Threaded Fasteners

Ref. Unit 10-1

Simplified Thread Representation Simplified Thread Representation

—Guide Block —Turnbuckle Details (& Assembly)

Simplified Thread Representation— Parallel

Clamps

Ref. Unit 10-3

H-4

Common Common Common

H-6

Chapter

Miscellaneous Types of Fasteners

Ref. Unit 11-1

Threaded Fasteners

Details)

for

Keys, Splines, and Serrations

Ref. Unit 11-4 Ref. Unit 11-5

Rivets— Structural and Blind Rivets

Pin Fasteners

Pin Fasteners

Ref. Unit 11-3

Details)

Rivets

— Rivets

Ref. Unit 11-6

Welded Fasteners

Ref. Unit 11-7

Adhesive Fasteners

Ref. Unit 11-8

Fastener

H-10

J-2

J-3 J-4 J-5

J-6

J-8

—Joint Design

J-10 (& Details)

— Universal Joint

J-11

J-12

Chapter 12

Manufacturing Materials

Ref. Unit 12-1

Cast Irons— Door Closer Arm

K-1

Ref. Unit 12-2

Carbon Steel— Raising Bar

K-2

Ref. Unit 12-3

Nonferrous Metals

K-3

Ref. Unit 12-4

Plastics—Connecting Link

K-4

Ref. Unit 12-5

Rubber— Caster Assembly

K-5

Chapter 13

Forming Processes

Ref. Unit 13-1

Castings

—Outboard Motor Clamp

Castings

—Connector —Swing Bracket

L-1

L-2

Ref. Unit 13-2

Forgings— Bracket

L-3

Ref. Unit 13-3

Powder Metallurgy— Bracket

L-4

Ref. Unit 13-4

Plastic

Molded Parts— Pivot Arm

Chapter 14

Detail

and Assembly Drawings

Ref. Unit 14-2

Functional Drafting— Cable Straps Functional Drafting

Contents

H-9

J-9

Review—Wheel Assembly

Fastener Review

H-8

J-7

Aerospace Equipment

for

H-7

J-1

— Draw Bar and Cam Follower —Crane Hook Retaining Rings — Power Drive Assembly (& Retaining Rings — Roller Assembly and Viewer Case Springs — Punch Holder Assembly

Ref. Unit 11-2

viii

H-5

Threaded Fasteners

Ref. Unit 10-5

11

H-3

—Terminal Block Detailed Thread Representation — Connector and Supports

—Shaft Intermediate Support Threaded Fasteners—Wheel Puller Details (& Assembly) Special Fasteners —Adjustable Shaft Support Assembly (& Fasteners Wood —Woodworking Vise Details (& Assembly)

Ref. Unit 10-4

H-2

Details (& Assembly)...

Simplified Thread Representation

Ref. Unit 10-2

H-1

—Cover Plate

L-5

M-1

M-2

Ref. Unit 14-3

Detail Detail

—

M-3 M-4 M-5

Base Plate Drawings— Swivel Hanger Drawings

— Locating Stand —Adjustable Pulley and Pulley Assembly... M-6 Drawing Revisions—Axle Cap M-7 Assembly Drawings — Tool Post Holder M-8 Assembly Drawings — V-Block Clamp M-9 Detail

Ref. Unit 14-4

Drawings

Multiple Detail Drawings

Ref. Unit 14-5 Ref. Unit 14-6

Ref. Unit 14-7

Exploded Assembly Drawings

Ref. Unit 14-8

Detailed

Ref. Unit 14-9

Subassembly Drawings

("hapttT 15

Pictorial Dra^injjs

—Coupling

M-10

Sawhorse

M-11

Assembly Drawings

—Wheel Assembly

M-12

.

— Flat Surfaces — Step Block and Planter Box Isometric Drawings — Curved Surfaces Isometric Drawings — Base Common Features Isometnc — Adapter Common Features Isometric — Two-Post Die Set

Ref. Unit 15-1

Ref. Unit 15-2

Ref. Unit 15-3

Isometnc Drawings

N-1

Isometnc Drawings

N-2

N-3 N-4 N-5

in

N-6

in

Ref. Unit 15-7

— Surfaces Oblique Projection— Spacer Block and Dovetail Guide Common Features Oblique— Step Pulley and Connector One-Point Perspective— Vise Base Two-Point Perspective— Support Guide

Chapter 16

(ic'onit'tric

Ref. Unit 16-1

Modern Engineenng Toierancing

Ref. Unit 16-2

Geometnc Toierancing— Stratghtness Tolerance

Ref. Unit 16-3

Geometric Toierancing

Ref. Unit 15-4

Oblique Projection

Ref. Unit 15-5

N-7

Flat

N-8

N-9

in

Ref. Unit 15-6

Ref. Unit 16-4

Dimensioning and

N-10 N-11

T<)lerancinj»

— Deviations and Block Diagram

— Flatness Tolerance

.

.P-1

P-2

P-3

Straightness of a Feature of Size

P-4

Datums and the Three-Plane Concept

P-5

Ref. Unit 16-6

Orientation Toierancing of Flat Surfaces

P-6

Ref. Unit 16-7

Datum Features Subject

Ref. Unit 16-8

Orientation Toierancing for Features of Size

Ref. Unit 16-5

.

Ref. Unit 16-9

Positional Toierancing

Ref. Unit 16-10

Projected Toierancing

Ref. Unit 16-11

Datum

Ref. Unit 16-12

Circularity

Targets

P-7

to Size Vanation

P-8 P-9

—Cover Plate

Zone

P-10

— Bracket Guide

P-1

and Roundness

P-1

—Slide

Ref. Unit 16-13

Profile Toierancing

Ref. Unit 16-14

Correlative Tolerances

Ref. Unit 16-15

Positional Toierancing of Noncylindrical Features

P-1

Ref. Unit 16-16

Positional Toierancing for Multiple Pattern of Features

P-1

Ref. Unit 16-17

Formulas

for Positional Toierancing

P-1

Ref. Unit 16-18

Summary

of Rules for

P-1

—Adjustable Base

P-1

— Housing

Geometnc Toierancing

P-1

Contents

ix

Chapter 17

Drawings for Numerical Control

Ref. Unit 17-1

Drawings

for

Numerical Control

—Two-Axis Control Systems

R-1

Ref. Unit 17-2

Drawings

for

Numerical Control—Three-Axis Control System

R-2

Chapter 18

Welding Drawings

Ref. Unit 18-1

Designing for Welding— Pivot

Ref. Unit 18-2

Welding Symbols

S-3

Fillet

Ref. Unit 18-4

Groove Welds— Connecting Link

Ref. Unit 18-5

Other Basic

Chapter 19

Design Concepts

Ref. Unit 19-1

Toggle-Switch Plate

Ref. Unit 19-2

Assembly Considerations

Chapter 20

Belts, Chains,

Bracket

Welds— Plug,

Slot,

S-4

and Spot Welds

S-5

T-1

—Conductor Supports

T-2

and Gears

Ref. Unit 20-1

Belt Drives

U-1

Ref. Unit 20-2

Chain Drives

U-2

Ref. Unit 20-3

Gear Drives— Spur Gear

Ref. Unit 20-4

Power Transmitting Capacity

Ref. Unit 20-5

Rack and Pinion

U-5

Ref. Unit 20-6

Bevel Gears

U-6

Ref. Unit 20-7

Worm and Gear

U-7

Ref. Unit 20-8

Comparison

Chapter 21

Couplings, Bearings, and Seals

Ref. Unit 21-1

Couplings and Flexible Shafts

Ref. Unit 21-2

Bearings

Ref. Unit 21-3

Antifriction

Ref. Unit 21-4

Premounted Bearings—Adjustable Shaft Support

V-4

Ref. Unit 21-5

Lubricants and Radial Seals

V-5

Ref. Unit 21-6

Static Seals

V-6

Chapter 22

Cams, Linkages, and Actuators

Ref. Unit 22-1

Ref. Unit 22-4

Cams— Cam Motions Cams— Plate Cam Cams— Positive Motion Cams Cams— Drum Cam

Ref. Unit 22-5

Indexing

Ref. Unit 22-6

Linkages

Ref. Unit 22-7

Ratchet

Ref. Unit 22-3

Contents

S-1

S-2

Ref. Unit 18-3

Ref. Unit 22-2

X

Welds— Swing

Arm

of Chain, Gear,

U-3 of

Spur Gears

and

Belt Drives

— Fan and Motor Layout

—Gearbox Bearings

U-4

U-8

V-1

V-2

—Gearbox

V-3

W-1

W-2 W-3

W-4

— Indexing Drive —Simple Crank Mechanisms

W-5

Wheels— Ratchet and Crank Mechanism

W-7

W-6

Chapter 23

DcM-iopiiunts and Intirsi'ctions

Ret. Unit 23-1

Surface Development— Wall Tray

Ref. Unit 23-2

The Packaging Industry

X-2

Ret. Unit 23-3

Radial Line Development

X-3

Ref. Unit 23-4 Ref. Unit

23-5

X-1

— Hexagon Box —Truncated Concentnc Pyramid Parallel Line Development — Three-Piece Elbow Radial Line Development

Ref. Unit 23-6

Development

of Transition Pieces

Ref. Unit 23-7

Development

of a

Ref. Unit 23-8

Intersections of Flat Surfaces

Ref. Unit 23-9

Intersections of Cylindrical Surfaces

Ref. Unit

23-10

X-6

—Gore Method

X-7 X-8 X-9

Intersections of Prisms

X-10

Pipe Drawinjis

Ref. Unit 24-1

Orthographic Piping Drawings

Ref. Unit 24-2

Isometric Piping

24-3

X-5

Sphere

Chapter 24

Ref. Unit

— Fuel

Oil

Supply System

Drawings— Diesel Engine

Supplementary Piping Information

Chapter 25

Structural Draftinj^

Ref. Unit 25-1

Structural Drafting

Starting

Ref. Unit 25-6

Chapter 26

Jij^s

Ref. Unit 25-2

Ref. Unit 25-4 Ref. Unit 25-5

Ref. Unit 26-1

Ref. Unit 26-2' Ref. Unit 26-3 Ref. Unit

26-4

Chapter 27

.

and

.

.

.Y-3

.AA-2 .

.AA-3

.AA^ .AA-5 .AA-6

Fixture.s

and Fixtures

Jigs and Fixtures

Jigs

Y-2 .

.AA-1

—Jig Design — Jig Components .... Jigs and Fixtures — Dimensioning Jig Drawings Jigs

Y-1

System

—Oil-Burning Piping System

— Beam Tolerances Structural Drafting — Beams Structural Drafting — Standard Connections Structural Drafting — Sectioning Structural Drafting — Seated Beam Connections Structural Drafting — Dimensioning

Ref. Unit 25-3

X-4

—Conical Surfaces

and Fixtures

Klectrical

—

Drill

,BB-1

.BB-2

.BB-3 .BB-4

Milling

and Klectronics Drawings

— Sound-Effects Generator —Wiring Diagram Boat

Ref. Unit 27-2

Schematic Diagrams

Ref. Unit 27-3

Wiring Diagrams

Ref. Unit 27-4

Printed Circuits— Circuit Board

Ref. Unit 27-5

Block and Logic Diagrams

for

— Remote Control Housing Wiring

.CC-1

.CC-2

.CC-3

.CC^

Contents

xi

OVERVIEW Drawing A-1

Drawing B-4.

Drafting Scales

— Measuring.

Relative Coordinates.

Reference Unit 1-4

Use

Reference Unit 4-1.

the scales specified at the top nt each cohimii aiui record

on

the length of each of the lettered dmieiisioiis

Measure

ings.

guidelines .12

on your

to the nearest calibration in.

Keep guidelines

or 3 thin

the

two draw-

scale.

Draw

mm apart in which to do your lettering. and

light,

using a hard lead pencil. Use

Work

directly t)n the grids

points given in the tables

guidelines

you

if

prefer.

shown at

Connect

hand sketching on the grid

and

to establish

label the

the right. Letter neatly, using the points either by free-

lines or using a straightedge. Lines

should be relatively thick, sharp, and black.

a softer lead for lettering.

Drawing B-5.

Drawing B-1

—

Lettering

Absolute Coordinates.

Vertical.

Reference Unit 4-1

Reference Unit 4-1.

Use a

4H

line

or

6H

lead to

shown across

tering as

draw guidelines

of lettering, using an

draw a few

for each line

HB

or

F

lead.

vertical guidelines as an aid in

the larger letters.

Do

o\' let-

Complete each You may want to

the top of the sheet.

drawing some of

Work

directly

on the grids shown

and

to establish

label the

points given in the tables at the right. Connect the points either by freehand sketching

straightedge.

Keep

on the grid

lines thick, sharp,

lines or

by using a

and black. Letter

neatly.

not erase guidelines.

Drawing B-6. Drawing B-2. Lettering

Polar Coordinates.

— Inclined.

Reference Unit 4-1

Reference Unit 4-1.

Begin

Follow instructions for Drawing Bl, excgpt an angle of 68° to the horizontal. You

on your

Ames

lettering

the large letters. black.

Do

Keep

may

guide as an aid all

lines

in

on your

slant all letters at

use the 68° angle

drawing a few of

lettering sharp

and

at

full-si/e

point

A and work

angles as accurately as possible in order to close back

at

point A.

Locating by Coordinates.

LInework

Reference Unit 4-1

Reference Unit 4-1

directly

determine

Complete

Keep

Comers should be sharp and

Drawing B-7.

Measure

make

a

make

the figure

finished lines sharp and black. clean.

not erase guidelines.

Drawing B-3.

to

in a clockwi.se direction to

drawing of the template. Measure distances and

on each of the draw ings. or use the .25 grid

the

exact

location

of each

the tables at the right of the

of the

drawings

points. for both

absolute and relative coordinates. Use guidelines and all lettering

.12

in.

high. Letter with an

HB

or

F

lead.

make

—Patterns.

Follow carefully the instructions given for parts

I

through

Do all layout work, using light construction lines with a 4H or 6H pencil. Darken all lines using an HB or H Finished lines should be approximately .03 thick.

in.

(0.7

6.

sharp lead.

mm)

Drawing B-12.

Drawing B-8.

Linework

— Inlay Designs.

Circles

—Anchor Plate.

and Arcs

Reference Unit 4-1

Reference Unit 4-2.

Lay out

First, locate

sizes.

A, B, and C, using either inch or millimeter

Figs.

Millimeter sizes are in brackets. Use a sharp, hard lead

Darken

pencil for layout.

all

lead. Finished lines should thick.

Do

finished lines, using an

be approximately .03

in.

HB (0.7

or

H

mm)

not dimension.

and draw

all

shown

center lines

as light solid con-

R65 arcs and Complete the drawing by darkening with an F or HB lead in your compass for large

struction lines. Next, locate the centers of the

mark all

points of tangency.

visible lines

circles

and

arcs.

Use

the

same grade of lead

in a pencil

with a circle template for small circles. Lay out

will ensure concentricity, especially with small circles.

—Shearing Blank.

center lines (approx. .016

Use your metric

in.

mm

or 0.35

Darken

thick), using long

and short dashes (see Figures 4-1-1 through 4-1-3

Reference Unit 4-1

at the

and

arcs with light construction lines before darkening them. This

Drawing B-9.

Linework

along

all circles

in text).

and follow the procedure shown

scale (1:5)

upper right on your drawing sheet to lay out the shear-

ing blank.

Lay out

triangles, drafting

all

angles carefully and accurately, using

machine, or protractor. Draw the complete

shearing blank. Begin by laying out the drawing, using light construction lines, and finish with thick (.03 lines as

shown

in step 4.

in.

or 0.7

Drawing B-1 3.

mm)

Construction lines (layout hnes)

Circles

—Gasket No.

and Arcs

Carefully measure and lay out

Drawing B-10. Circles

and Arcs

tangency.

— Designs. and

Figs. A, B,

C

on the center

lines provided. First,

center lines (construction

all

Locate and mark the centers of

lines).

Reference Unit 4-2.

Lay out

1.

Reference Unit 4-2.

need not be erased.

Draw

circles

all

lines.

Darken

plate

may be used

and

all visible lines

all

areas and points of

arcs, using light construction

and center

lines.

for small circles and arcs.

A circle Do

tem-

not erase

construction lines or points of tangency.

lay out each figure, using light construction lines, and finish

with thick (.03 Fig.

C may

black

in.

or 0.7

mm)

lines.

be drawn as thin (.016

The Crosshatch lines in or 0.35 mm), sharp,

in.

lines.

Drawing B-1 4. Drawing B-1 Circles

.

and Arcs

Circles

— Pawl.

and Arcs

—Gasket No.

2.

Reference Unit 4-2.

Reference Unit 4-2.

Follow the four steps shown

Develop the drawing of the pawl around the

intersection of the

center lines in the middle of the drawing area. This center point represents the center of the 1.00

in.

diameter hole. Measure

accurately and lay out the entire figure, using light construction lines.

Locate centers of

all

arcs

before constructing arcs. Darken

using an

2

HB

or

Overview

and mark points of tangency all

lines (.03 in. or 0.7

H lead. Do not erase construction lines.

mm),

drawing sheet

shown

in the

to

in the

upper right side of the

draw the gasket around

bottom half of the

sheet.

the center lines

Begin by locating the

centers of circles and arcs with light construction lines.

Add

the location of all points of tangency. Construct all circles

and

arcs (thin, light construction lines). lines. Finally,

darken

all lines,

erase construction lines.

Connect arcs with

including center lines.

straight

Do

not

Drawing B-1 5. Irregular

Drawing C-2.

Curves

— Patterns.

Applied Geometry

Reference Unit 4-3.

—Arcs and Circles.

Reference Unit 5-2.

Establish points on the blank grids through which the irregular

Do

curves uill pass.

grid at the

left to

from the

this b\ transferring points

the grid

at

Follow the instructions carefully

in

A

spaces

the right and carefully estimating

through

F.

points where the curved lines intersect the grid lines. Lightly

sketch the curved shape through the established points. Use

an irregular curve (F-rench curve) to draw the finished

The French curve should be matched

to as

many

lines.

Space A. L
points as

all

possible in order to achieve a sm(K>th finished curve. Also, on

lay out arcs.

long irregular curved lines, allow the French curve to overlap

template and pencil with soft lead.

somewhat from one

jxirtion of the

curved

mark points of

arcs and

tangency. Use a compass with a hard, sharp lead to

Darken arcs with compa.ss or

circle

line to the ne.xt.

Drawing B-1 6. Space

B. Bisect

—Lines and Circles.

Sketching

any two sides

to IcKatc the center of the

polygon. Construct the circle touching each corner

Reference Unit 4-4. Before darkening any of your

lines, carefully

sketch each

fig-

Space

ure using light construction lines.

and points of tangency. Draw a

C. Locate centers

construction hnc betv^een points it

Drawing B-1 7.

into three equal

parts.

between the two arcs

Sketching

—Structural Shapes.

point

L on

line

is

The

to fall

LM. Draw

K and

and

light

di\ idc

point of tangency

on the mark nearest

perp)endicular bisectors

of each segment of construction line

Reference Unit 4-4.

/,

/^Z,

to establish

A line K and one

center points for each of the two arcs.

The squares on from the

the grids represent .50

in.

Transfer distances

pendicular to

JK upward from

structural steel shapes to the grid,

and sketch each of

pendicular to

l^ downward

the figures, using light construction lines.

using thick, black, visible lines. instructed to

do

Do

Darken

all

lines,

so.

Space D. Locale the

bottom

and arcs followed by

for

each

at

part.

straight lines.

and points of tangency. Use

to construct the arcs.

to use a circle template as a

the arcs.

Transfer points from the draw ings

arc centers

your compass

Reference Unit 4-4.

and center

per-

from point L w ill also

be needed to establish centers for the arcs.

—Shaft Support and Control Arm.

the grid at the

per-

not add dot pattern unless

Drawing B-1 8.

Sketching

p
Do

guide

not erase construction lines.

the top of the sheet to

Carefully sketch circles

Darken

all

visible lines

Space

E.

Locate centers of arcs and points of tangency. Use

your compass

lines.

to

draw

the arcs.

You ma\

use a circle template as a guide arcs.

Drawing C-1

Applied Geometry

You may prefer when darkening

Do

in

prefer to

darkening the

not erase construction lines.

—Straight Lines.

Reference Unit 5-1

Space Follow the instructions carefully cases,

first

problem.

in

spaces

A through

F.

In all

use light construction lines to completely solve the

Do

not erase construction lines.

F.

Draw

A

construction lines (straight lines) that connect

with

tors of

B and B

with C.

AB

BC

and

Draw perpendicular

to locate center of arc.

erase construction lines.

bisec-

Do

not

Drawing C-4.

Drawing C-3.

Applied Geometry

— Polygons.

Applied Geometry

—Template and Hook.

Reference Unit 5-3.

Reference Unit 5-3.

Follow the instructions carefully

A through F.

in spaces

Template: Locate points on the grid that correspond with

Use appropriate construction develop the geometric shapes. Darken

points on the drawing.

Space A. For the large hexagon, begin by constructing a circle whose diameter equals the distance across the

methods

to

all visible lines

and center

lines.

comers. Establish points on the circle 60° apart.

Connect the

whose diameter equals

circle

distance across the cle 60° apart.

For the small hexagon, begin

points.

by constructing a

Use only

Hook:

the

Locate centers of circles and arcs where pos-

sible.

Sketch details not given

Establish points on the cir-

flats.

Connect the

the dimensions given for part 4 of the

table.

in specific

dimen-

points. sions.

Space

B.

Begin by constructing 30

mm

and 50

mm

around the center point given. Proceed as A, except

in

circles

Space

in this case divide the circles into eight

equal parts rather than

six.

Drawing C-5. Space

C.

mm square and a circle

Begin by constructing a 60 within the square tangent to

its

sides.

Complete the

octagon by constructing 45° lines tangent to the

Applied Geometry

— Ellipses.

Reference Unit 5-4.

circle.

Follow the instructions given

Space D. Construct a 60 given.

mm

circle

Use construction to

Space A. Begin by dividing the

circles into

divide

AB it

Use

complete the pentagon.

as the radius,

from point

A

the

AB

Space

B.

intersections

Use construction

lines to establish the centers of the

small and large arcs. Use your compass to construct

as the length of each side,

of the remaining sides.

Connect points and darken the

final ellipse.

radial lines

through the three division marks on

the right. Using locate

Draw

which Use a French curve to

radial lines to establish points through

draw the

draw a semicircle and

into five equal parts.

any number of

equal parts (example, 30° angles equal 12 parts.)

the ellipse will be drawn.

Space E. Using

A through C.

around the center point

lines to establish the length

of one side and step off the remaining four sides.

Connect points

in spaces

arcs.

Give careful attention

to points of tangency.

lines representing

the pentagon.

Space

C.

Begin by drawing a 60

mm

by 120

mm

rectangle

about the center lines given. Use construction lines

Space

4

F.

Follow the procedure given for space E, except

to establish points

divide the semicircle into seven spaces rather than

drawn. Use a French curve to draw a smooth ellipse

five.

through the points established.

Overview

through which the ellipse will be

^

Drawing C-6.

Drawing D-3.

Applied Geometry

Helix

and Parabola.

Orthographic Representation Coordinates.

Reference Unit 5-5.

Two-Oimensional

Reference Unit &-1.

Space

A.

Complete lino

view of the cylinder on the base

the front

given

Part

Divide the circle into 12 equal

l\ing the length

ol

12

point

,4.

B.

lines to

lines as appropriate.

si.\

complete the

Do

directly

on the

grid.

dravmng F\in B insolves

Connect relative

lay-

not erase con-

OA

and related

lines

equal parts. Use C(>nstruction lines to con-

nect points to establish a grid. to connect points

them

Drawing D-4.

Parallelo^rum imtlunl. Di\ ide into

label

at

struction lines.

Space

and

the points to complete ihc ciH)rdinales.

Use construction

Darken

developed using the absolute ctH)rdinate method.

IS

dinienMons.

develop a stretchout of the cylinder beginning

out.

A

parts.

Plot all pt)ints

one of the

Use a French curve

Orthographic Representation Coordinates. Reference Unit &-1

Count

the squares

the X,

>',

and complete the parabola.

Offset nu'ihoil. Divide line

OA

ial

Divisions on the horizontal line beginning it

at

A

Z

and

drawings

into five equal parts. lines

be established by dividing

—Three-Dimenslonal

on the grids

for Parts

A

and B to establish

coordinates. Label cm)rdinates on the pictor-

to identify points of intersection of the various

and surfaces.

will

into 5", or 25. equal

Use this method to establish a grid through which the parabolic curve will be drawn. parts.

Drawing D-5.

Orthographic Representation

—Corner Bracket.

Reference Unit 6-1

Study the

pictorial

drawing carefully before beginning

assignment. Review Unit 6-1

in

your

you

text if

about the difference between third-angle projection and

Drawing D-1

this

are not sure first-

angle projection. Either sketch the views or use a straightedge

Orthographic Representation Coordinates.

—Absolute

to

Reference Unit 6-1

Work

directly

either

final

drawing.

Drawing D-6.

on the grids shown

points given in the tables

produce the

at

and label the Connect the points

to establish

the right.

by freehand sketching on the grid

lines or using a

straightedge.

Orthographic Representation

— Location Block.

Reference Unit 6-1

Review Unit each case

in

6-1 in your text.

Work from

the given vieu in

developing the remaining five

views or use a straightedge to complete the

\

iews. Sketch the

final

drawings.

Drawing D-7.

Orthographic Representation

Drawing D-2.

Orthographic Representation Coordinates.

—Relative

Space A. Use

light construction lines to

to aid in

directly

on the grids shown

points given in the tables either

at

to establish

the right.

and

front

and

developing the right-side view. Darken

visible lines.

label the

Do

all

not era.se construction lines.

Connect the points

by freehand sketching on the grid

straightedge.

draw the

top views of the angle bracket. U.se a 45" miter line

Reference Unit 6-1.

Work

— Miter Lines.

Reference Unit 6-2.

lines or using a

Space

B. In this case,

draw the front and right-side views

first.

Next, add a miter line and develop the top view.

Drawing D-13.

Drawing D-8.

Orthographic Representation

and

—Surfaces Parallel

Visible.

Orthographic Representation

—Inclined Surfaces

(1).

Reference Unit 6-5.

Reference Unit 6-3.

Draw

Carefully study each of the pictorial drawings before attempting to sketch or

draw the three views of each on

the grids.

shown on

three normal views of each of the pictorials

sheet D13. Study the details carefully as you transfer infor-

mation from the pictorial grid to the orthographic that inclined surfaces

become foreshortened

grid.

Notice

in certain views.

Drawing D-9.

Orthographic Representation and Edges.

— Hidden Surfaces

Drawing D-1 4.

Orthographic Representation

Reference Unit 6-4.

—Inclined Surfaces

(2).

Reference Unit 6-5. Carefully study each of the pictorial drawings before attempting to sketch or

draw

the three views

on each

grid.

Review

Unit 6-4 on page 100 of your text before adding hidden

lines.

Carefully select the front view for each of the six drawings

and develop three views of each. Watch for inclined surfaces and hidden

lines.

Drawing D-1 0.

Orthographic Projection

—Control Block.

Drawing D-1 5.

Reference Unit 6-4.

Orthographic Representation Use construction lines to block in the three views, keeping 20 mm between views. Use a miter line if you prefer. Add hidden lines. Darken all visible and hidden lines. Remember!

Block

Visible lines are thick; hidden lines are thin.

Notice that the front view detail.

Drawing D-1

in the three

Watch

normal views for each of the is

the one that

six pictorials.

shows the most

and hidden

for inclined surfaces

—Angle Stop.

lines.

Drawing D-1 6.

Reference Unit 6-4.

Orthographic Representation in the front, top,

and right-side views of the angle

top view, front view, or right-side view?

and hidden

—Inclined Surfaces

(4).

stop.

Allow .50 in. between views. Use a miter line if you prefer. Darken lines as appropriate. Are there any hidden lines in the visible lines

(3).

.

Orthographic Projection

Block

— Inclined Surfaces

Reference Unit 6-5.

What happens when

lines coincide?

Reference Unit 6-5.

Block

in the three

normal views for each of the

Notice that the front view detail.

Watch

is

the one that

for inclined surfaces

six pictorials.

shows

and hidden

the

most

lines.

Drawing D-1 2.

Orthographic Projection— Guide Bar. Reference Unit 6-4.

Block

in the three

views required for third-angle projection.

Use a miter line if you prefer. Allow .50 in. between views. Develop each view completely, using construction lines before darkening any lines. Are there hidden lines?

6

Overview

Drawing D-1 7.

Orthographic Projection- -Base. Reference Unit 6-5.

Block line

in the three

may be

views with 20

useful in this case.

that the front

view

is

mm between views. A miter

Are there hidden

the one that

shows

the

lines? Notice

most

detail.

Drawing D-23.

Drawing D-18.

Orthographic Projection

— Base Plate.

Orthographic Representation Drawings.

Reference Unit 6-5.

Lay out

the three views of the base plate with

20

mm between

— Interpreting

Reference Unit 6-6.

views. Use a miter line to develop the top and right-side

Study the orthographic views carefully before beginning

views. Are there hidden lines \n the top view'

assignment Project visually from view to view as you establish the sizes for

lettering

A

through

your ansuers

T

in the

in

this

each case. Use guidelines for

space provided.

Drawing D-19.

Orthographic Representation

Drawings

— Interpreting

Drawing D-24.

Orthographic Projection

(1).

Reference Unit 6-5.

Be

sure you

first

understand which

is

the Iront, top.

side view of both the bracket and the neatly.

Use guidelines

—Rocker Arm.

Reference Unit 6-6

if

comer

and

right-

bracket. Letter

needed.

Draw

the top view

front view.

when

first

and project downward

You may need

to

to refer to L'nit 4-2 in

draw

the

your

text

locating the centers of the arcs connecting the large and

small cylinders.

Be

mark

sure to

all p>oints

of tangency with

light construction lines.

Drawing D-20.

Orthographic Representation

Drawings

— Interpreting

Drawing D-25.

(2).

—Oblique Surfaces

Orthographic Representation

Reference Unit 6-5. (1).

Be

sure you

side

first

understand which

is

the front, top,

and

view of both the angled step bracket and the angle

Letter neatly.

Use guidelines

if

right-

Reference Unit 6-7.

stop.

Study the pictorials carefully. Block

needed.

grids before adding details.

Use

in

the three sieus

a miter line

if

on the

needed. Are

there hidden lines in any of the views?

Drawing D-21

—Circular Features

Orthographic Representation

Drawing D-26. (1).

Orthographic Representation

'Reference Unit 6-6.

—Oblique Surfaces

(2).

These assignments may be freehand sketched or drawn with

Reference Unit 6-7.

instruments. First, block in each view, allowing one grid

space between views. Use construction lines to complete the detail in lines,

each view. Finally, darken

and hidden

all

visible lines, center

Study the pictorials carefully. Block grids before adding details.

in the three

Use a miter

line if

views on the needed. Are

there hidden lines in any of the views?

lines.

Drawing D-27. Drawing D-22.

Orthographic Representation

—Circular Features

(2).

Orthographic Representation Drawings.

—One- and Two-View

Reference Unit 6-6.

Reference Unit 6-8.

These assignments may be freehand sketched or drawn with

Study each of the pictorials carefully.

instruments. First, block in each view, allowing one grid

necessary views on a separate sheet of paper before working

space between views. Use construction lines to complete the

on your workbook

detail in lines,

each view. Finally, darken

and hidden

lines.

all

visible lines, center

sheet.

needed, sketch the

Your solutions may be freehand

sketched or drawn with instruments.

need hidden lines?

If

Do

all

of the drawings

Drawing D-33.

Drawing D-28.

Special Views

—Connector.

Foreshortened Projection

While

—Clutch.

Reference Unit 6-14.

Reference Unit 6-9. a front view, right-side view,

and

left-side

view would

generally be sufficient to describe the connector, a top view or partial top view can be used to

more

clearly

show

the radii

Make

front

and top views of the clutch. Rotate features

into

the horizontal plane as required. Determine limits for the

keyed hole from Appendix Table 48.

on the bent comers.

Drawing D-34. Drawing D-29.

Intersection of Unfinished Surfaces

Conventional Representation

— Locking Plate.

Review Unit 6-15

Reference Unit 6-1 0.

At

least three sets of features

—Cutoff Stop.

Reference Unit 6-15.

can be shown simplified on

in

your

text for a clear

understanding of

intersections of unfinished surfaces before completing this this

assignment. Also, see Unit 8-7 for information on surface

drawing.

how

texture and

it

drawing should be

is

specified

fully

on a working drawing. This

dimensioned.

Drawing D-30.

Conventional Breaks Reference Unit 6-1

Drawing D-35.

— Fixture Base.

Intersection of Unfinished Surfaces

1

—Sparker

Bracket. With a scale of to

1:1, a great

occur for the views to

need

to

remove (break

deal of foreshortening will need

fit

out)

the sheet. Therefore,

some

large portions

you

between the

Use long

center hole and the threaded holes on each end.

break lines to show where portions have been removed. there another

way

to

Reference Unit 6-15.

will

Is

accomplish the same objective?

Review Unit 6-15

in

your

text for a clear

understanding of

intersections of unfinished surfaces before completing this

assignment. Also, see Unit 8-7 for information on surface texture and

how

it

drawing should be

is

specified

fully

on a working drawing. This

dimensioned.

Drawing D-31

Drawing E-1

Lines of Intersection

—Cylindrical Surfaces.

.

Primary Auxiliary Views

Reference Unit 6-12.

—Angle Bracket.

Reference Unit 7-1 Grids can be developed to accurately establish the lines of intersection or

Your

you can estimate and sketch the finished

The

auxiliary

view need only show the

lines.

inclined surface. instructor will assign the method.

Be

views for dimensions. Review Unit 8-7 mation on surface texture and

— Mounting Bracket.

Primary Auxiliary Views front

how

it

is

in

your text for infor-

specified on a work-

Drawing E-2.

Reference Unit 6-14.

Make

and shape of the

ing drawing.

Drawing D-32.

Foreshortened Projection

size

sure to allow sufficient space between

and top views of the mounting bracket. Rotate

features into the horizontal plane in order to

show

all

—Angle Plate.

Reference Unit 7-1

parts in

and shape. The front view might best be shown as a half-section. Dimension if instructed to do so. Determine limits for the keyed hole from Appendix Table 43 in your

begin to draw. Pay attention to the location of views. The

text.

inclined surface. Fully dimension the completed drawing.

their true size

8

Overview

Study the drawing setup on drawing sheet E2 before you auxiliary view need only

show

the size and shape of the

Drawing E-8.

Drawing E-3.

Primary Auxiliary Views

— Statue Bases.

Secondary Auxiliary Views

Project

at riiihl

— Dovetail Bracket.

Reference Unit 7-4.

Reference Unit 7-1 angles

the ohlique surface to establish the

tci

length ot the auxihar>' views o! the two objects.

dimensions are taken from the top views.

Do

The width

not dimension.

The primary

view

auxiliar\

is

developed from

completed top view. The lop view

is

jecting details back to the top view.

a partially

then completed by pro-

The

oped by projecting from the top view.

front

view

is

devel-

develop the

Finally,

secondary auxiliary view by projecting from the primarv aux-

Drawing E-4.

iliary

Circular Features

— Link.

the front view and partial lop and aii\iliar>' views,

using light construction

is

shape on the

in its true

then projected to the other view.

notes.

Drawing E-9.

lines, lisiahlish the best location for

each of the break lines on the in before

The hexagram hole shown

Add dimensions and

Reference Unit 7-2.

Develop

view.

secondary auxiliary view

partial

darkening the remaining

views and sketch them

lines.

Add dimensions and

Secondary

Auxiliary Views- -Pivot

Arm.

Reference Unit 7-4.

notes.

Complete

as

much of

the front view as jxjssible before pro-

jecting to the auxiliary views.

Drawing E-5.

iliary

Multiple Auxiliary Views

and

— Inclined Stop.

Develop

size) of the right side.

show only

Reference Unit 7-3.

The

right partial

primary aux-

view should show only the inclined surface

The secondary

(true

shape

auxiliary view will

the inclined surface containing the round hole.

Add dimensions and

notes.

the required views, using light construction lines.

Sketch the break lines on the three ening the remaining

partial

views before dark-

Add dimensions and

lines.

Drawing E-10.

notes. Sizes

not given on the pictorial drawing can be measured directly

Revolutions.

on the

Reference Unit 7-5.

front view.

Use dividers B. and

Drawing E-6. Multiple Auxiliary Views

C

as

—Connectlqg Bar.

Drawing E-1 light construction lines.

Sketch the break lines on the auxiliary views before darkening the remaining lines.

Use an elHpse template

ellipses that appear in the

to

draw the

bottom view. Add dimensions and

notes.

Points and Lines

—Angle Stop.

\icws as specified.

Do

not erase

not dimension.

in

Space.

Reference Unit 7-6.

Review Unit 7-6 in your text before prcKceding. Establish miter lines where appropriate to aid in projecting points and in

Do

points and lines.

Multiple Auxiliary Views

Do

.

developing lines

Drawing E-7.

from the normal views of parts A.

rotate the

construclion lines.

""Reference Unit 7-3.

Develop the required views, using

to take sizes

you

the various views required. Label all

not erase construction lines.

Drawing E-1 2.

Reference Unit 7-3.

Planes

Draw to

the top

view

develop the front

sheet locate surface iliary

notes.

From the top view, project downw ard view. The angular lines on the drawing

in

Space.

first.

A on

views as necessary

the auxiliar)' views. Break the auxto

fit

the sheet.

Add dimensions and

Reference Unit 7-7.

Review Unit 7-7 fully

from view

problem.

Do

in

to

your

view

text before prcKceding. Project care-

to

develop an accurate solution to the

not erase construction lines.

Drawing F-2.

Drawing E-13. Visibility of

Lines

Basic Dimensioning

Space.

in

Review Unit 7-8

in

—Vertical Guide.

Reference Unit 8-1

Reference Unit 7-8.

your text before proceeding. Study each

of the figures carefully. Try to visualize lines and surfaces in

space before attempting to complete the assignments.

Do

not

Draw

the front, top,

and right-side views. Allow

sufficient

space between views for dimensions (min. 25 mm). Use guidelines for lettering.

erase construction lines.

Drawing F-3. Drawing E-14.

Basic Dimensioning

Distance Between Lines and Points.

Reference Unit 8-1

Reference Unit 7-9.

Review Unit 7-9

in

Draw your

text before proceeding.

Study each

of the figures carefully. Try to visualize lines and points in space before attempting to complete the assignments.

Do

not

— Base.

the front, top, and right-side views.

Allow

sufficient

mm). Use more than one way to dimen-

space between views for dimensions (min. 25 guidelines for lettering.

Is

there

sion the angular shapes?

erase construction lines.

Drawing F-4. Drawing E-15.

Dimensioning Circular Features

Edge and True View

—Adjustable

Sector.

of Planes.

Reference Unit 8-2. Reference Unit 7-10.

Review Unit 7-10

Review Unit 4-2 your text before proceeding. Study each

in

of the figures carefully. Try to visualize lines and points in

space before attempting to complete the assignments.

Do

your text for correct procedures

in

ing arcs tangent to straight lines and adjacent arcs.

tangent points. not sions.

Do

not erase construction lines.

Use guidelines

in

draw-

Mark

all

Add dimen-

for lettering.

erase construction lines.

Drawing F-5. Drawing E-1 6.

Dimensioning Circular Features Angle Between Lines and Planes. Reference Unit 7-1

1

.

Draw Review Unit 7-11

in

your text before proceeding. Study each

of the figures carefully. Try to visualize lines and points in

space before attempting to complete the assignments.

Do

not

erase construction lines.

Drawing F-1

— Notched Block.

in.).

1

in.).

Review

Unit 8-2 in your text for information on dimensioning circular features,

including holes, slots, circles, and arcs.

Use

all lettering.

Dimensioning

Common

Features

— Handle.

Reference Unit 8-3.

and right-side views. Allow sufficient

space between views for dimensions (approximately 1.50

Do not dimension to hidden

tering.

and right-side views. Allow sufficient space

Drawing F-6.

Reference Unit 8-1 the front, top,

front, top,

between views for dimensions (approx. 1.00

guidelines for

.

Basic Dimensioning

Draw

— Bracket.

Reference Unit 8-2.

lines.

Use guidelines

for let-

Review Unit 8-3 open

in

your

text.

to this unit for various

for dimensioning

holes,

and

common

You may want

to

keep your

text

examples of acceptable methods

features such as chamfers, knurls,

tapers.

Overview

I

DfBwing F-1 2.

Drawing F-7.

Dimensioning

Common

Features

—Gasket

your

in

text for correct prtxredures for

ing arcs tangent to straight lines and adjacent arcs.

tangent points. sion.s.

Do

draw-

Mark

Add

not erase constmction lines.

Use guidelines

all

diinen

—Transmission Cover.

in

your

text.

Refer to

for information required to cal-

culate the dimensions needed to complete the assignment

number of decimal

Be

places.

4-2

in y»)ur text for correct

priK'edures for draw-

ing arcs tangent to straight lines and adjacent arcs. ptiinls.

Do

— Inch.

Fits

Reference Unit 8-6

Reference Unit 8-4.

tangent

Appendix Tables 51 and 52

Drawing F-1 3.

Dimensioning Methods

I'nil

Study Unit K-6. "Fits and Allowances."

sure you delcriniiK' the correct

tor all Icllennj:

Drawing F-8.

Review

— Metric.

Reference Unit 8-€.

Reference Unit 8-3.

Review Unit 4-2

and Allowances

Fits

Mark

all

Add dimen-

not erase construction lines.

sions after a careful review of Unit 8-4 in your text.

Use

rec-

Study Unit 8-6. "Fits and Allowances."

Appendix Tables

4.^

in

your

lexl.

Refer to

through 47 for information required to

calculate the dimensions needed to complete (he assignment.

Be

sure you determine the correct

number of decimal

places.

tangular coordinate dimensioning.

Drawing F-1 4. Drawing F-9. Fits

Dimensioning Methods

—Adapter Plate.

Reference Unit 8-4.

Study Unit 8-6, "Fits and Allowances."

Unit 8-4 in your text describes and illustrates the various

methods

for

dimensioning a drawing. Keep your

open

text

to

Unit 8-4 while you complete this assignment. For what pur-

pose

is

the

— Metric.

Reference Unit 8-6.

Appendix Tables 51 and 52

in

your

text.

Refer to

for information required to cal-

culate the dimensions needed to complete the assignment.

sure you determine the correct

number of decimal

Be

places.

symmetry symbol used? Drawing F-1 5.

Drawing F-10. Fits

Limits

and Tolerances.

—Spindle.

and Allowances

Reference Unit 8-6.

J^eference Unit 8-5.

Refer to Appendix Tables 43 through 52 for information on

Be

sure you understand terms

standard

fits.

of size, and tolerance. Do you need the Appendix Tables on Fits to corqplete this assignment?

limeters.

Do

Study Unit 8-5 such as basic

in

your

text.

size, limits

Show not

for information

all

dimensions either

mix dimensions. Refer

to

in

inches or in mil-

Appendix Table 22

on Woodruff keys and Tables 35 through 39

for standard retaining rings.

Drawing F-1 Fits

.

Drawing F-1 6.

— Inch.

and Allowances

— Link.

Surface Texture

Reference Unit 8-6.

Reference Unit 8-7.

Study Unit 8-6. "Fits and Allowances."

Appendix Tables 43 through 47

in

your

text.

Refer to

for information required to

calculate the dimensions needed to complete the assignment.

Be

sure you determine the correct

number of decimal

places.

Review Unit 8-7 in your text for information on surface texRefer to Appendix Table 46 for information on loca-

ture.

tional interference

fits.

11

Drawing G-5.

Drawing F-17.

Surface Texture

—Column Bracket.

Half-Sections

—Step Pulley.

Reference Unit 8-7.

Reference Unit 9-3.

Review Unit 8-7 in your text for information on surface texture. Refer to Appendix Table 43 for information on running and sliding fits, and Table 46 for information on locational

In a half-sectional view,

interference

removed? Refer

what portion of the object

to

Appendix Table 21

is

theoret-

for information

on square keys. Add dimensions.

fits.

Drawing G-1 Full

ically

Drawing G-6.

—Shaft Base.

Sections

Half-Sections

Reference Unit 9-1

Review Unit 8-7 on surface textures. Also review Units 8-1 through 8-3 on symbols used in dimensioning before proceeding. In a full section, what portion of the object is theoretically removed? Use general-purpose section lining except in special cases.

—Step-V

Pulley.

Reference Unit 9-3.

How many

In a half-sectional view, ically

removed? Refer

what portion of the object

to

Appendix Table 21

is

theoret-

for information

on square keys. Add dimensions.

types of cutting-plane lines are

there?

Drawing G-7. Drawing G-2. Full

Sections

Threads

—Slide Bracket.

Reference Unit 9-1

Review Unit 8-7 on surface

texture.

Refer to Appendix

Tables 43 through 47 for limit dimensions on the holes showing a precision

fit.

Can

in

Section

— Pipe Plug.

Reference Unit 9-4. Refer to Chapter 10, "Threaded Fasteners," for information on thread representation. See Unit 9-4 for specific information

on threads

in section.

Use general-purpose

section lining.

the center line be used as a cutting-

plane line? Use general-purpose section lining except in special cases.

Drawing G-8. Drawing G-3.

Two

or

Threads

—Casing.

More Sections

tion

dimensioning and notes. Also, refer to Appendix Table 27

ters at the

on taper

— End Plate.

Refer to Chapter 10, "Threaded Fasteners," for information on thread representation. See Unit 9-4 for specific informa-

Refer to Units 8- 1 through 8-3 for a review of symbols used

for information

Section

Reference Unit 9-4.

Reference Unit 9-2.

in

in

pins.

What

is

on threads

in section.

Use general-purpose

section lining.

the purpose of the let-

ends of the cutting-plane lines on the front view?

Drawing G-9. Drawing G-4.

Two

or

More Sections

— Housing.

Assemblies

in

Section

— Flanged Coupling.

Reference Unit 9-5.

Reference Unit 9-2. Refer to Unit 14-5 for information on

Refer to Units 8-1 through 8-3 for a review of symbols used in

dimensioning and notes. Also, refer to Appendix Table 27 on taper pins. What is the purpose of the let-

for information ters at the

12

ends of the cutting-plane lines on the front view?

Overview

list.

how

to

develop an item

Unit 14-7 will provide you with information on assembly

drawings. Refer to Appendix Table 21 for specifications on square keys.

Remember

that shafts, bolts, pins,

not generally sectioned even

if

and so on, are

they are cut by the cutting plane.

Drawing 6-16.

Drawing G-10.

Assemblies

in

Section

—Caster.

Revolved Section

RcMcvA

Chapter

Appendix iahles and

nuts.

ID, 1

1

"Threaded

and 14

F'asleiiers."

14

ot section lining

and refer

on hex-head

tor intbrniatK)n

Refer to Appendix Table

Re\erse the direction

Drawing

—Chisel.

Reference Unit 9-8.

Reference Unit 9-5.

tor

to

bt)lt.s

wa.sher sizes.

on adjacent

Where practical, use revolved sections. Use removed sections when a revolved section bliKks other detail. The octa-

only

gon shape can be constructed around

diam-

Gr-1 1

Offset Sections

— Base Plate.

Drawing G-1 7.

Reference Unit 9-6.

Spokes and Arms

Review Chapter

Reference Unit 9-9.

10,

"Threaded Fasteners," as wcil

9-4 for inforniatii>n on drawing threads

draw

a circle having a

eter equal to the distance across the Hals

parts.

lines

on the sedional views

to

a.s

show changes

Unit

Do

in section.

not

in direc-

tion of the oflset cutting plane.

—Offset Handwheel.

.Spokes and arms are generally not section lined. e\en cutting plane passes through them. section of a spoke be

Mark Drawing G-1 2.

Why? Could

it

the

a revolved

shown just as easily on the side view? w hen draw ing the reverse curves on

points of tangency

the side view.

Offset Sections

— Mounting Plate.

Reference Unit 9-6.

RcMcw

Chapter

10.

"Threaded Fasteners." as well as Unit

9-4 for information on drawing threads

draw

lines

on the sectional views

Do

in section.

to .show

changes

not

in direc-

Drawing G-1 8.

Broken-Out Section

— Hold-Down Bracket.

Reference Unit 9-10.

tion of the offset cutting plane.

A

short break line

is

used

to outline a

broken-out section.

Refer to Appendix Table 36 for information on internal

Drawing G-1 3. Ribs, Holes,

retaining rings. Refer to

and Lugs

—Two-Post Column Base.

on

limits

and

tils

Appendix Table 4X

for information

for the hole.

Reference Unit 9-7. 'Alternate section lining

is

often used on ribs to avoid confu-

Drawing G-1 9.

sion (see tlnit 9-7 in your text).

Phantom Section Drawing G-1 4. Ribs, Holes,

Reference Unit 9-1

and Lugs

—Shaft Support.

See Appendix Table 48 for infonnation on

Reference Unit 9-7.

The dimension (60) dimension. What does this mean? the three holes.

U.se alternate section lining (see Unit 9-7 in to

— Bearing Housing.

1.

your

text)

on

ribs

limits

and

fits

for

represents a reference

avoid confusion. Could the top view be drawn as a half-

view with symmetry symbols

to

save lime and space?

Drawing G-20. Drawing G-1 5.

Revolved Section

Phantom Section

—Connector.

Reference Unit 9-8.

Refer to Appendix Tables 48 and 49 for information on lim-

Refer to Appendix Table 48 for information on precision for the

two

large holes.

— Housing.

Reference Unit 9-11.

Review Unit S-7

for information

surface texture. Use a template to draw the ellipse.

fits

on

its

and

fits

precision

for the holes

fits;

do not

fully

and bushings. Dimension only the

dimension the draw

to reverse the direction of the section lining

ing.

Remember

on adjacent

parts.

13

Drawing H-4.

Drawing G-21

Section Review

— Domed Cover.

Simplified Thread Representation Reference Unit

Reference Unit 9-12.

Study the three views carefully. Be sure you can visualize

all

Appendix Table 43 for informaholes on the periphery of the top view

details completely. Refer to

on

tion

to be

fits.

Are

the six

counterbored or spotfaced?

—Slide Support and

10-1-10 through 10-1-13 for information on

simplified thread representation and notes. See Unit 6-15 for

show

techniques used to

the intersection of unfinished sur-

Drawing H-5.

Press

Drill

Detailed Thread Representation

—Connector and

Supports.

Reference Unit 9-12.

Review Chapter 9 on

Figs.

—Terminal Block.

0-1

faces.

Drawing G-22.

Section Review Base.

Review

1

Reference Unit 10-2. sections and conventions in your text.

These problems are designed

to test

your general knowledge

Refer to Fig. 10-2-3

in

your text for the steps

detailed representations of square and

acme

drawing

in

threads.

of this subject.

Drawing H-6.

Drawing H-1 Simplified Thread Representation

—Guide Block.

Study carefully the technique involved

in simplified thread

representation in Unit 10-1. In particular, study Figs. 10-1-10

and 10-1-11.

Common

Threaded Fasteners.

Reference Unit 10-3.

Reference Unit 10-1.

Fig. 10-1-12 will also be useful as

you develop

the notes describing the threaded holes.

Unit 10-3 in your text gives a description of the shape, characteristics,

and uses for various types of threaded

See Appendix Tables tion

needed

to

draw

13, 14, 17,

fasteners.

and 22 for specific informa-

the fasteners (including washers) for this

assignment. Use simplified thread representation.

Drawing H-2. (Two solution pages.) Simplified Thread Representation

—Turnbuckle.

Drawing H-7.

Reference Unit 10-1.

Common

Review Unit

Support.

10-1 in your text before proceeding. In particu-

study Figs. 10-1-10 through 10-1-12 for specific infor-

lar,

mation on simplified thread representation and notes. You

may

also find

it

useful to refer to Chapter 14 for information

Threaded Fasteners

—Shaft Intermediate

Reference Unit 10-3.

Use simplified thread representation (see Unit 10-1 in your Refer to Appendix Table 45 for limits of size for the precision hole. See also Unit 6-15 for information on how to represent the intersection of unfinished surfaces. Review Unit 8-7 in your text for information on surface texture. text).

on

detail

and assembly drawings as well as item

lists.

Drawing H-3. (Two solution pages.) Simplified Thread Representation

— Parallel

Clamps.

Drawing H-8. (Two solution pages.)

Reference Unit 10-1.

Common Review Unit

10-1 in your text before proceeding. In particu-

study Figs. 10-1-10 through 10-1-13 for specific infor-

lar,

Threaded Fasteners

—Wheel

Puller.

Reference Unit 10-3.

Review Chapter

mation on simplified thread representation and notes. You

Use only simplified thread

may

14 in your text for information on detail and assembly draw-

on

also find

detail

it

useful to refer to Chapter 14 for information

and assembly drawings as well as item

9 contains information on conventional breaks.

14

Overview

lists.

Chapter

ing as well as item

cap screws.

lists.

representation.

See Appendix Table 10 for details on

Drawing H-9. (Two solution pages.)

Special Fasteners

Drawing J-A. (Two solution pages.)

—Power Drive Assembly.

—Adjustable Shaft Support.

Retaining Rings

Reference Unit 10-4.

Use

Reference Unit 11-3.

siinplificd thread represenlation only. Refer to

Appendix

Tables 48 and 49 for limit dimensions on the precision

Information on setscrc'ws can be found in

vour

in

tils.

Appendix Table

I

.^

Refer to Appendix Table 68 si/.es

on

Table 21 for directly

text

Drawing H-1 0. (Two solution pages.)

from

in

your

and Table 13

kcy.s.

text for

information and

^5 through M) for retaining rings. for seLscrews.

the drav^ing provided.

Add

part

Vise.

Retaining Rings

Reference Unit 10-5.

sizes

— Roller Assembly and Viewer

Case.

Use simplified thread representation

only. Refer to

Appendix

Reference Unit 11-3.

Table 13 for infomiation on setscrews. Refer to Appendix

Refer to Appendix Tables

Table 10 tor information on machine screws. Limit dimen-

information on retaining rings and Table 19 for

sions for the precision

Take

numbers.

Drawing J-5.

Wood — Woodworking

Fasteners for

bearinjis. Tables

fit

are found in .Appendix Table 43.

Add dimensions and groove

3.S

through 39

your

in

fiat

text

for

washers.

notes to describe the added parts and

sizes.

Drawing J-1

—Key Fasteners.

Keys, Splines, and Serrations

Drawing J-6.

Reference Unit 11-1.

Use

sectional views

Springs

where appropriate

on various kinds of keys

will

be found

and 23. See Appendix Table 14 representation to

show

for

for better clarity. in

Data

Appendix Tables 22

hex nuts. Use schematic

—Punch Holder Assembly.

Reference Unit 11-4.

Study Unit 11-4 before proceeding. Information on drawing springs

is

clearly

shown

in this unit.

See .Appendix Tables 35

threads.

and 36

for details

precision

fit

on retaining found

will be

in

rings. Limit

dimensions for the

Appendix Table 43.

Drawing J-2. Pin Fasteners

—Draw Bar and Cam Follower.

Drawing J-7.

Reference Unit 11-2.

Rivets

Use sectional views where appropriate for better clarity. See Appendix Table 26 for clevis pins. Table 29 for grooved pins, and Table 23

—Structural and Blind Rivets.

Reference Unit 11-5. Refer to Fig.

for cotter pins.

rivets.

1-5-2 in your text for infomiation on drawing

1

Button head rivets are recommended for the truss

assembly. See Fig.

1

1-5-6 for infomiation on blind rivets.

Drawing J-3. Pin Fasteners

—Crane Hook.

Drawing J-8.

Reference Unit 11-2.

Rivets See Fig. 10-4-3

in

your

text for infomiation

on the

Reference Unit

Appendix Table 28 contains infomiation on spring Table 26. clevis pins; and Table 25. cotter pins. refer

back to Unit 10-3

ifv fasteners in

in

vour item

your list.

text for details

— Rivets for Aerospace Equipment.

slotted nut.

If

necessary.

on how

1

1-5.

pins:

to spec-

Refer to Figs. this lyp)e

1

i-5-4 and

of draw ing.

to represent the

Be

1

1-5-5 in \our text for

examples of

sure to use the appropriate symbols

aerospace rivets specified.

15

Drawing K-1

Drawing J-9.

Welded Fasteners Attachments.

— Pipe and Leakproof

Cast Irons

in

— Door Closer Arm.

Reference Unit

Reference Unit 11-6.

Study Unit 11-6

.

1

2-1

Refer to text Fig. 12-1-2 for information on a suitable mater-

your

Estimate

text before proceeding.

sizes for the resistance-welded threaded fastener to be used

on the pipe attachment.

A

ial.

Break out a portion of the arm

to provide space for the

\

revolved section.

.25 in. diameter fastener is sug-

gested to hold the bracket to the pipe.

A .3

with spring lockwasher and hex nut are

1

in.

diameter stud

recommended

for the

Drawing K-2.

leakproof attachment.

Carbon Steel

— Raising Bar.

Reference Unit 12-2.

Drawing J-1 0.

Adhesive Fasteners

—Joint Design.

Refer to text Fig. 12-2-4 to help in selecting an appropriate

Show

material.

the

acme

threads in detailed representation;

Reference Unit 11-7. all

Panel

1:

See

text Fig. 11-7-3.

the

ing

only an edge view, show-

tongue and groove feature.

Appendix Table 5

Panel 2: See

Draw

1

others, simplified.

for specification

Refer to

on adhesives.

text Fig. 11-7-3 for joint design. Select

adhesive

Drawing K-3.

Nonferrous Metals

from Appendix Table 5 1

Review Unit 8-4 Panel 3: See

text Fig.

11-7-3.

A

conventional tongue and

for a

from Appendix Table 51.

lines.

your text for information on various

smooth

transition

from arc

to arc

all

points of tangency

and from arc

to straight

text Fig. 11-7-3 for the design of a toggle lap

joint. Select

Drawing J-1 1

in

forms of arrowless dimensioning. Mark

groove joint should be considered. Select adhesive

Panel 4: See

—Outboard Motor Clamp.

Reference Unit 12-3.

.

adhesive from Appendix Table 5

1

Plastics

(Two solution pages.)

Fastener Review

—Connecting Link.

Reference Unit 12-4.

—Wheel Assembly.

The spacer should be made from a relatively soft material to absorb shock and vibration. The castings need to be made

Reference Unit 11-8. Limit dimensions for the precision

Drawing K-4.

fits

are found in

Appendix

from a

relatively inexpensive, moderately strong material.

Tables 43 and 46. Use sectional views where appropriate.

Consider specifying rubber as the material for the wheel.

Drawing K-5. Drawing J-1 2.

—Caster Assembly.

Rubber

— Universal Joint.

Fastener Review

Reference Unit 12-5.

Reference Unit 11-8.

shaft held in place with a spring pin in each fork. fied thread representation only.

1

6

Overview

Use

simpli-

show

mushA hex nut and lock washer must be shown on the threaded end of PT 3 Shaft Bolt. See Appendix Table 14 for information on In assembly,

See Appendix Table 10 for information on machine screws, and Table 28 for information on spring pins. Show a short

roomed

the peened end of the post

(riveted.) This feature

—

drawing the hex

nut.

(PT

2)

can be drawn freehand.

Drawing M-2.

Drawing L-1

Castings

—Connector.

Functional Drafting

Be sure

lo allow

the caslini; lor

—Cover Plate.

Reference Unit 14-2.

Reference Unit 13-1.

suHKicnl

niatorial

on the lup ami boiiom of

machining Docs the design

vn machining

tor additional material

the 4.(K)

the casting tor

.'

in.

suiiiiesi the

need

diameter on the base

o\

Refer to Unit S-4 lor a review of arrowless dimensiomng.

Use

a tabulated setup

t«)r

specifying the size and location of

holes.

Drawing M-3. Drawing L-2.

Castings

Detail

—Swing Bracltet.

Reference Unit 13-1.

Add

Allow

to the thicl^ness ot

tlie

Drawings

— Base Plate.

Reference Unit 14-3.

material to compensate tor the dif-

between views

sufficient space

for dimensions.

Would

sectional views be of any value on any of the three views?

ference in strength between a cast part and a fabricated steel part.

Show

fillets

in vt)ur text for

and rounds as necessary. Review Unit S-7

Drawing M-4.

information on surface texture.

Detail

Drawings

—Swivel Hanger.

Reference Unit 14-3.

Drawing L-3.

Forgings

Refer to Unit 6-15

— Bracket.

your

in

of unfinished surfaces.

Reference Unit 13-2.

text for a

Mark

all

review of intersections

tangent points. Allow suffi-

cient space for dimensions.

Holes and similar features are generally machined part and. therefore, will not

show

in the

in a

forged

forging drawing.

Be

Drawing M-5.

sure to allow for machinini! on surfaces with finish marks.

Detail

Drawings

— Locating Stand.

Reference Unit 14-3.

Drawing L-4.

Powder Metallurgy

Refer to Unit 6-15

— Bracket.

your

in

text tor a

review ot intersections

of unfinished surfaces. Refer to Unit 8-7

in

your

text for a

review of surface texture. Use Appendix Table 3 for the con-

Reference Unit 13-3.

version of decimal inches lo millimeters.

The machining drawing generally

will

rehire only dimen-

sions that specify machining operations.

Drawing M-6. Multiple Detail Drawings

Drawing L-5. Plastic

Molded Parts

—Adjustable Pulley and

Pulley Assembly.

— Pivot Arm.

Reference Unit 14-4.

Reference Unit 13-4. Refer to Appendix Tables 43 through 49 lor information on

Three threaded

molded

in

inserts

are

required.

Design them

place with a self-locking feature.

to

be

Add dimensions

and notes.

limit

dimensions. Use single views and partial views of parts

where appropriate. Remember improve

clarity.

that sectional

views can often

Use simplified thread representation

in all

cases.

Drawing M-1

Functional Drafting

Drawing M-7.

—Cable Straps.

Drawing Revisions

Reference Unit 14-2.

—Axle Cap.

Reference Unit 14-5.

Your

final

design will include flat-end and rounded-end

straps in four combinations of sizes

drawing should show constant

and hole spacing. Your

sizes;

a

table

included to show variable sizes and hole spacing.

should be

Refer to Fig. 14-5-1 as an example of

Be sure dimensions on

this

type of drawing

add change identification numbers near

technique.

to

the

the

drawing

that require

changes.

17

Drawing N-2.

Drawing M-8.

Assembly Drawings

—Tool Post Holder.

Isometric Drawings

—Step Block and Planter Box.

Reference Unit 15-1.

Reference Unit 14-6.

Use simplified thread representation. Reverse section lining on adjacent parts.

the direction of

In each case, begin

by blocking

in a

rectangular solid

sizes are equal to the overall width, depth,

whose

and heights of the

object.

Drawing M-9.

Assembly Drawings

—V-Block Clamp.

Reference Unit 14-6.

Drawing N-3.

Use simplified thread representation. Review Unit 14-5 information on item lists.

for

Isometric Drawings Reference Unit

1

—Curved Surfaces.

5-2.

Study each of the three-view drawings carefully before

Drawing

IVI-10.

attempting the pictorial views. These assignments

Exploded Assembly Drawings

—Coupling.

may be

completed by freehand sketching or with instruments (including ellipse template.)

Reference Unit 14-7.

Review Unit 14-6 for information on an item list. You may find it more practical to draw the coupling to a somewhat smaller scale. Refer to Appendix Table 23 for appropriate sizes

Drawing N-4.

on keyseats.

Curved Surfaces

Detail

Assembly Drawings

—Sawhorse.

First,

lines.

text Unit 14-6 for information

that this

The

on item

lists.

drawing does not have decimal dimensions.

partial detail of the leg

needed for

block in the overall sizes of the object. For inclined

lines, locate the

Reference Unit 14-8.

Review

— Base.

Reference Unit 15-2.

Drawing M-1 1

may be added

to

Notice

Use

end points and connect them with

a template for ellipses.

Use

straight

unidirectional dimen-

sioning.

Why?

your drawing

if

clarity.

Drawing N-5. Drawing M-1 2.

Subassembly Drawings

Common

—Wheel Assembly.

Features

Reference Unit

1

in

Isometric

—Adapter.

5-3.

Reference Unit 14-9.

Use an Use simplified thread Tables

11,

Use hidden

14,

and 19 for data on

lines only

Drawing N-1

representation.

when needed

Refer to Appendix

bolts, nuts,

and washers.

Drawing N-6.

— Flat Surfaces.

Common

Reference Unit 15-1.

Where

inclined

involved, simply find the end points and connect

1

8

Overview

Features

Reference Unit

Study each of the three-view drawings carefully before attempting the pictorial views.

straight lines.

Apply unidirectional

for clarity.

,

Isometric Drawings

ellipse template if available.

dimensioning technique.

lines

are

them with

1

in

Isometric

—Two-Post Die Set.

5-3.

Use an ellipse template for isometric circles. Be sure to add numbers to the pictorial drawing. Review Unit 14-6 for information on item lists. Use only the sizes from the righthand column in the table. part

Drawing P-1

Drawing N-7.

— Flat Surfaces.

Oblique Projection

Modern Engineering Tolerancing

Reference Unit 15-4.

Block Diagram.

— Deviations and

Reference Unit 16-1.

Study each

nt

three-view

the

drawinj;s

attempting the pietorial vieus. You

by bliKking

in a

rectangular solid

may

whoso

find

caretiiliy it

KMtire

easier to begin

si/cs are equal

tt)

the

overall width, depth, and height ot the object. For inclined lines. Ux-ate

end points and connect them with

straight lines.

Study carefully Unit 16-1

An

understanding

t)f

boftire

working on Drawing P-l.

form variations (deviations)

to

is critical

an understanding of geometric lolerancmg (engineenng

tol-

erancing.)

These assignments may be completed by freehand sketching or with instruments.

Drawing P-2.

Geometric Tolerancing Drawing N-8.

—Spacer and Dovetail Guide.

Oblique Projection

Refer Ut Fig. 16-2-3 in your text for the si/e and shape of the

Reference Unit 15-4.

feature control frame and the leader that connects

Study the assignment drawings carefully before attempting

Remember

the pictorial views.

that in cabinet oblique, all

receding lines are drawn half-si/e. In cavalier oblique, lines are

drawn

— Straightness Tolerance.

Reference Unit 16-2

full si/.e.

Use only

it

with the

view. See also Fig. 16-2-2 for information on geometric char-

symbols.

acteristic

all

unidirectional dimension-

Drawing P-3.

ing.

Geometric Tolerancing

— Flatness Tolerance,

Reference Unit 16-3.

Drawing N-9.

Read Unit 16-3

Common

Features Connector.

in

Obliqu<

-Step Pulley and

bol.

Reference Unit 15-5.

Remember drawn

that

half-size.

in

4.

cabinet oblique,

Begin

at the front

all

in

your

text before prcKceding.

Refer to Fig.

16-3-1 in your text for the size and shap«' of the flatness

Refer to Fig. 16-3-4 for Part

and

Fig. 16-3-2 for Parts 5

2. Fig.

and

sym-

16-3-3 for Parts 3 and

6.

receding lines are

of the object and carefully

locate each surface (plane) by measuring distances on the

Drawing P-4.

Straightness of a Feature of Size.

receding axis. Use only unidirectional dimensioning.

Reference Unit 16-4.

Read Unit 16-4

Drawing N-10.

One-Point Perspective

-Vise Base.

Reference Unit 15-^.

your

text before

What does the diameter symbol in mean? Notice in Fig. 2 that there specified.

Begin by blocking

in

proceeding. Refer to Figs.

16-4-14 and 16-4-15 for examples of this type of problem.

in a

How

diws

this

the feature control frame is

a

maximum

tolerance

apply to gage size?

perspective rectangular solid (wire

frame) whose sides are equal to the width, depth, and height of the vise base. Use unidirectional dimensioning only.

Drawing P-5.

Datums and the Three-Plane Concept. Reference Unit 16-5.

Drawing N-11.

Two-Point Perspective

-Support Guide.

Add

only the geometric tolerances specified; do not fully

dimension the views. This assignment combines the concepts Reference Unit 15-7.

Begin by blocking

in a

covered perspective rectangular solid (wire

in

may need

previous geometric tolerancing assignments. You

to review Units 16-1 through 16-4 as

you prcKced.

frame) whose sides are equal to the width, depth, and height

Also, see Fig. 16-5-5 for information on the placement of the

of the vise base. Use unidirectional dimensioning only.

datum

feature svmbol.

19

Drawing P-6.

Drawing P-1 1

Orientation Tolerancing of Flat Surfaces.

Datum Targets

Reference Unit 16-6.

Reference Unit 16-11.

See Fig. 16-2-2 for information on geometric characteristic symbols. Refer to Appendix Table 44 for data on

LC3

fits.

.

Read Unit 16-11 find

it

— Bracket Guide. your

in

practical to sketch

text before proceeding.

You may

your solution on a tissue overlay

Add geometric tolerances as specified in the instructions of your assignment sheet. Fully dimension the drawing unless

before adding tolerancing data and dimensions to the drawing

instructed otherwise.

information on the datum target symbol, the identification of

sheet. Refer to Figs. 16-11-1 through 16-11-3 in

datum

and the datum

targets,

target point

your text for

symbol. Fully

dimension the drawing.

Drawing P-7.

Datum Features Subject

Drawing P-1 2.

to Size Variation.

Reference Unit 16-7.

Circularity

Read carefully Unit 16-7 before proceeding. What effect does

Reference Unit 16-12.

MMC

have on gage size? Notice the

given in Examples

and

5, 6, 11,

12.

maximum

How

does

tolerance

this

apply to

gage size?

and Roundness.

Read Unit 16-12

in

your text before proceeding. See Fig. 16-

2-2 in your text for information on symbols for circularity

and

cylindricity.

Be

careful in calculating the geometric tol-

erances relative to size tolerances.

Drawing P-8.

Drawing P-1 3. Orientation Tolerancing for Features of Size.

Review this

MMC basis. You may want to sketch the solution to

problem on a

tissue overlay before adding tolerancing

data and dimensions to the final assignment sheet. Refer to

Appendix Table 43

—Slide.

Profile Tolerancing

Reference Unit 16-8.

for data

on the

RC7

Reference Unit 16-13. Refer to Fig. 16-2-2 ric characteristic

on the

fit.

"all

in

your text for information on geomet-

symbols. See Fig. 16-13-20 for information

around" symbol. Convert

that relate to

all

standard dimensions

geometric tolerances to "theoretically exact"

dimensions.

Drawing P-9.

Drawing P-1 4.

Positional Tolerancing. Reference Unit 16-9.

Correlative Tolerances

Positional tolerances have to features

do with the

relative location of

and are most commonly associated with the assembly

of parts. Review Fig. 16-9-1 in your text before proceeding.

—Adjustable Base.

Reference Unit 16-14.

Read Unit

16- 14 in your text before proceeding. Refer to Figs.

16-14-1 and 16-14-2 in your text for examples related to this

assignment. Convert

all

standard dimensions that relate to

geometric tolerances to "theoretically exact" dimensions.

Drawing P-10.

Projected Tolerancing Zone

—Cover

Plate.

Drawing P-1 5.

Reference Unit 16-10.

Positional Tolerancing of Noncylindrical Features.

Read Unit 16-10 find

it

in

your text before proceeding. You

practical to sketch

may

your solution on a tissue overlay

before adding tolerancing data and dimensions to the drawing

Remember that

Reference Unit 16-15.

Read Unit 16-15

in

your text before proceeding. Noncylin-

standard dimensions enclosed in a rec-

drical features in this case involve features such as slots,

tangle represent theoretically exact dimensions. These are

grooves, and tabs. Refer to Figs. 16-15-1 through 16-15-8 in

used

to establish the theoretically exact location

your text for an example of

20

Overview

sheet.

of a feature.

this concept.

DfBwfnQ P— 16.

Drawing S-1

Positional Tolerancing for Multiple Pattern

Designing for Welding

of Features.

Reference Unit 18-1.

Reference Unit 16-16.

Read Unit 16-16

When

in yi)ur text

before proceeding

Figs. 16-16-1 through 16-16-3 for

Convert

all

examples of

Reler to

this concept.

standard dimensions that relate to geometric

tol-

converting from a casting to a weldment,

appropriate strength.

reduce

to

To minimi/e

parts

Drawing P-1 7.

Drawing S-2.

Fonnulas for Positional Tolerancing.

Welding Symbols.

Reference Unit 16-17

Reference Unit 18-2.

Refer to the formulas and calculations

you proceed through

this

in

Unit 16-17 of your

material

IS

si/es

is

often

reducing

Manufacturing irregularly shaped

cx|X'nsi\c

Study Fig.

1

8-2-

1

in

your

Be

text.

sure you understand the dif-

ference between weld symbol and weUiin/^

assignment.

it

without

cost in production, keep individual

parts as simple as possible

erances to 'iheoreticallv exact" dimensions.

text as

— Pivot Arm.

wmhol

sure >ou understand arrow \ide and other side.

Also, be

You may com-

plete this assignment using freehand sketching or instruments.

Drawing P-1 8.

Summary

of Rules for

Drawing S-3.

Geometric Tolerancing

Housing. Fillet

Welds— Swing

Bracket.

Reference Unit 16-18. Reference Unit 18-3.

Study Unit 16-18

in

your

text before

you proceed. Be sure

to

allow sufficient space between and around views for dimensions.

You may w ant

to

draw the two views and then use a

Refer to Fig. 18-3-3 for information on strength of welds.

Make

sure your welding symbols fully describe the finished

tis-

sue overlay to lay out the dimensions and tolerancing data

before adding them to the final drawing.

welds. Create your

complete the item

own names

for

each of the parts when you

list.

Drawing S-4. Drawing R-1

Drawings Systems.

for

—Two-Axis Control

Numerical Control

Groove Welds

When

Reference Unit 17-1.

—Connecting Link.

Reference Unit 18-4. converting from a casting to a weldment. keep

vidual parts as simple as possible.

Read

carefully the text material in Unit 17-1.

Be

sure you

understand the difference between coordinate dimensioning

and point-to-point dimensioning. Point locations

in all ca.ses

Each square equals .10

are determined by counting squares.

to manufacture.

Complex shapes

While shapes and

all indi-

are costly

si/es of individual parts

can change, hole sizes and center-to-ccntcr distances must

remain the same.

Make up names

completing the item

for individual parts

when

list.

inches.

Drawing S-5.

Drawing R-2.

—Three-Axis

Drawings for Numerical Control Control System. Reference Unit

1

Other Basic

Welds— Plug,

Read Unit 18-5

7-2.

in

joint preparations

Read carefully

the text materials in Unit 17-2. Study Fig. 17-

2-4 for a clear understanding of

how

to calculate

Z

distance.

Slot,

and Spot Welds.

Reference Unit 18-5.

tional views.

your

text.

Study Fig. 18-5-1. Sketch the

and shapes of finished welds

Use instruments

to

in the sec-

add dimensions and welding

symbols.

21

Drawing U-4.

Drawing T-1

—Toggle-Switch Plate.

The Design Process

Power Transmitting Capacity

Reference Unit 19-1.

Reference Unit 20-4.

There are many plates.

Make

sizes, styles,

However, simplicity

and shapes of toggle switch

Read Unit 20-4

good design!

examples given

is still

the key to

several freehand sketches of various designs before

completing your

final

your

in in

of

Spur Gears.

text before proceeding.

Follow the

your text for the solutions to similar prob-

lems.

drawing.

Drawing U-5. Drawing T-2.

Rack and

Assembly Considerations

—Conductor Supports.

Reference Unit 19-2.

Lay out

There are an endless number of solutions

to this

Pinion.

Reference Unit 20-5.

problem.

Your primary objective is to arrive at a solution that is safe, and inexpensive. Make a complete set of working drawings, including an assembly drawing, of your final

practical,

the

two views based on

the information given.

lines to represent the

view as a

full section.

for information

remaining gear

teeth.

Show

Use phantom

four or five teeth on both the rack and gear.

Draw

the side

Refer to Appendix Table 21 in your text

on keyseats. Complete the cutting-data block.

design.

Drawing U-6. Drawing U-1

Bevel Gears. Belt Drives.

Reference Unit 20-6.

Reference Unit 20-1

Read Unit 20-1

Draw

both gears in

full section.

Fully dimension. Refer to

various tables in your text as you complete your calculations.

Appendix Table 21 in your text for information on keyseats. Complete the cutting-data block.

Drawing U-2.

Drawing U-7.

Chain Drives.

Worm and

Reference Unit 20-2.

Reference Unit 20-7.

Read Unit 20-2

in

your text before proceeding. Refer to the

your

in

text before proceeding.

steps of procedure described in your text

Follow the

when developing

the

solution to the three problems. Refer to the tables as needed.

It is

Gear.

not necessary to

show

the shape (profile) of the teeth in

either of the circular views.

Use phantom

sion the working drawing. Refer to

Appendix Table 21

in

your text for information on keys and keyseats.

Drawing U-3.

Gear Drives

lines to simulate

gear teeth. Complete the cutting-data block and fully dimen-

—Spur Gear.

Drawing U-8.

Reference Unit 20-3.

Comparison Read Unit 20-3

in

your text before proceeding. Become

familiar with spur gear definitions and formulas given in Fig.

20-3-5.

A single,

all that is

full-section

needed

Appendix Table 21

22

Overview

view and cutting-data block are

to fully describe the spur gear.

for data

on keyseat

sizes.

Refer to

of Chain, Gear,

and Belt Drives.

Reference Unit 20-8. Refer to a standard bearing catalog for specifications on

low blocks your

(shaft supports.) Refer to

text for information

pil-

Appendix Table 21

on keys and keyseats.

in

Drawing V-1

Drawing V-6.

Couplings and Flexible Shafts

— Fan and Motor

Static Seals.

Layout.

Reference Unit 21-6.

Reference I'mi 21-1.

Keler to L'mt 21-6

Estimate m/cn not given on the tDiiplm!,' dravMnj; ished drawing should

along w the

ith the

drawing

show

^our hn-

the motor, gearbox, and

two couplers and

shatt in place.

Use

in

your

text for all necessary information

on ()-rings and gaskcl-I\pe

seals.

housmg

a note

on

to spccily the correct coupling.

Drawing W-1

Cams—Cam

Drawing V-2.

Bearings

Motions.

Reference Unit 22-1

—Gearbox.

Read Unit 22-1 in your text and become familiar with cam terminology. Develop the layout (grid) for the displacement

Reference Unit 21-2. Refer to standard gear catalogs for design data on gears. Plain bearings can be found

in

Appendix Table

66.

Appendix Table

diagram, using thin

lines.

Only

the line representing the path

of the follower sht)uld be thick.

64 covers setscrew collars and Tabic 21 covers keys. Label parts as appropriate.

Drawing W-2.

Drawing V-3. Antifriction Bearings

Cams— Plate Cam.

—Gearbox.

Reference Unit 22-2.

Reference Unit 21-3.

See Appendix Table 21

for information

on keys. Table 35

retaining rings, and Table 68 for radial bearings.

need

to refer to

Develop the displacement diagrams

You may

manufacturers' catalogs for some of the stan-

dard parts. Label parts, but do not dimension.

Drawing

first,

followed by the

for

plate

and

cam. and

complete the chart showing angular

finally,

radial displacement.

Fig. 22-2-2 in

your

Follow the line technique shown

in

text.

\/-4.

Premounted Bearings

— Adjustable Shaft Support.

Reference Unit 21-4.

Drawing W-3.

Cams— Positive

Motion Cams.

Reference Unit 22-3.

Consider

ufTtng a full-sectional

view or a half-sectional view.

However, remember

that shafts, bolts, pins. etc.. are usually

not sectioned even

if

Appendix Table 13

they

in

fall

the cutting plane.

See

Develop the displacement diagrams plate

and

for setscrews.

cam. and

radial displacement.

Fig. 22-2-2 in

your

first,

followed by the

complete the chart showing angular

finally,

Follow the

line

technique shown

in

text.

Drawing V-5.

Lubricants and Radial Seals.

Drawing W-^.

Reference Unit 21-5. First, find etc..

and

Cams — Drum Cam.

catalog or appendix references for bearings, seals,

(obtain sizes for each.

the

final

sketching

before

Refer to Fig. 22-4-2

sheet.

of

freehand

Appendix Table 69 has information on standard tapered roller You may need to refer to catalogs for other parts.

bearings.

Reference Unit 22-4.

prefer to solve the

drawing on the workbook

assignment problems through attempting

You may

this

in

your

text for a general

understanding

assignment. Complete the chart on the assignment

sheet after

cam and

you have completed

the

two views of

the

drum

the displacement diagram.

23

Drawing X-3.

Drawing W-5.

Indexing

—Truncated Concentric

— Indexing Drive.

Radial Line Development

Pyramid.

Reference Unit 22-5.

Reference Unit 23-3.

Take

from the chart

sizes directly

at the

top of the assignment

sheet for indexing drive 6S75. Give only necessary dimensions.

Show

direction of rotation on each part. See

Appendix

Use dividers views

to the

and thin

Table 23 for information on keys.

to transfer all

lines for

since this

dimensions from the front and top

development. Use thick lines for visible outlines

is

bend

Dimensions are not necessary

lines.

a full-size development. Letter or

number

all

points of intersection.

Drawing W-6.

Linkages

—Simple Crank Mechanisms.

Drawing X-4.

Reference Unit 22-6.

Parallel Line

Read Unit 22-6 in your text. Use either a thin solid line, phantom line, or a dashed line to represent the paths of the various

Reference Unit 23-4.

points.

Development

—Three-Piece Elbow.

Divide the circular view into 30° segments. The length of the 30° segments on the circular view becomes the basis for laying out the development.

Drawing W-7.

Ratchet Wheels

— Ratchet and Crank Mechanism.

Drawing X-5.

Radial Line Development

Reference Unit 22-7.

—Conical Surfaces.

Reference Unit 23-5.

Read Unit 22-7

in

drive pawl, and

mark

your

text. Plot the

path of the end of the

the positions of the

rotation of the crank.

Use

points completing the path.

a

phantom

Number the

pawl

line to

each 22.5°

True-length lines must be used to lay out the developments.

connect the

True-length lines are the outside edge lines, not the vertical

at

points along the path.

distances.

Add

.20

in.

seam allowances.

Drawing X-6. Drawing X-1

Development

—Wall Tray.

Surface Development

of Transition Pieces.

Reference Unit 23-6. Reference Unit 23-1

Use

Prepare a true-length diagram to establish the true lengths of thick lines for visible outlines

Allow 6

lines.

mm

and thin

lines for

bend the

for

seams and hems. Dimensions are

bend

the front

required since the drawing

is

lines in the transition.

Some

lines are true length

and top views. Add numbers and

letters

on

but do not

not full size.

dimension.

Drawing X-2.

Drawing X-7.

The Packaging Industry

— Hexagon Box.

Reference Unit 23-2.

Use

dividers to transfer

views

to the

and thin since this

is

all

dimensions from the front and top

lines.

Dimensions are not necessary

a full-size development. Letter

section.

24

bend

Overview

of a

Sphere

—Gore Method.

Reference Unit 23-7.

development. Use thick lines for visible outlines

lines for

Development

all

points of inter-

Read Unit 23-7 front

in

your

text carefully.

and top view of a 3.00

in.

Begin by laying out a

sphere on a separate sheet of

paper. Divide the top view into 30° segments and project

downward

to

develop the front view. Follow Fig. 23-7-1 to

complete the development.

Add

appropriate dimensions.

Drawing X-8.

Drawing Y-3.

Intersections of Flat Surfaces.

Supplementary Piping Information Piping System.

Reference Unit 23-8.

—Oil-Burning

Referetice Unrt 24-3 Firsi.

complete

Use dividers

tlic

lines of inlerseclion

lo transfer sizes

from the

on the views given. views

jiiven

to

pnnJuce

Read Unit

24-."? in

your

you priKced.

text before

In particular,

study Figs. 24-3-3 and 24-3-6.

the development.

Drawing AA-1

Drawing X-9.

Structural Drafting

Intersections of Cylindrical Surfaces.

Reference Unit 25-1

Reference Unit 23-9.

Much

DiMcic the circle (end view of round pipe) into 30' segments,

and project

to the other

views

— Beam Tolerances.

of the information needed to complete the tables

assignment

will be

found

in Figs.

in this

25-1-8 through 25-1-10.

to establish a series of points

(intersections of projection lines)

on the

the points to complete the Iront

iew.

\

troni \iew.

Connect

Drawing AA-2.

— Beams.

Structural Drafting Reference Unit 25-2.

The Drawing X-10.

partial

design draw ings on your assignment sheet contain

the information needed to develop the detail drawings.

sure to include

Intersections of Prisms.

all

dimensions and notes on each

Be

detail.

Reference Unit 23-10. Project from the front view to the lines of intersection.

development and

You

radial

t()p

view

to

complete the

will be using both parallel

line

development

to

line

complete the

Drawing AA-3. Structural Drafting

— Standard Connections.

Reference Unit 25-3.

assignment.

Locate the north end of beam E3 and the

K3. Note

,

^

Orthographic Piping Drawings System.

— Fuel

—

-.

Oil

Structural Drafting Reference Unit 25-4.

ing

you

the assignment sheet. Refer to

and 24-1-13 as examples of the type of draw-

are expected to do.

Add

end of beam

pointing to the all

dimen-

Drawing AA-4.

a front, top. and side view, single-line drawing repre-

shown on

is

Supply

Make

Figs. 24-1-12

s»>uth

sions and welding symbols.

Reference Unit 24-1

senting the pictorial

symbol

Refer to Fig. 25-3-13 as an example. .Show

left.

Drawing Y-1

that the north direction

an item

—Sectioning.

Carefully study the differences bet\\een the tuo

W16

beams. Use Fig. 25-6-1

your draw-

list.

ing.

The primary

in

your

difference

text as a

is that

model

for

x 40

notes will be required to

describe the differences between the two beams.

Drawing AA-5.

Drawing Y-2.

Isometric Piping Drawings

— Diesel Engine Starting

System.

—Seated Beam Connections.

Reference Unit 25-5.

Reference Unit 24-2.

Read

Convert the three-view orthographic drawing shown on the assignment sheet

Structural Drafting

to a single-line isometric

Figs. 24-1-2 and 24-1-3 as examples.

Add

carefully Unit 25-5 before prcKeeding. Refer to Fig. 25-

5-3 in your text as an example of the type of drawing you will

drawing. Refer to

do

an item

weldinsz svmhols.

list.

in this

assignment.

Show

all

appropriate dimensions and

25

Drawing CC-1

Drawing AA-6. Structural Drafting

— Dimensioning.

Schematic Diagrams

Refer to Fig. 25-6-2 as an example of the type of drawing you

do

will

ings of

assignment.

in this

—Sound-Effects Generator.

Reference Unit 27-2.

Reference Unit 25-6.

beams and specify

Where

possible,

combine draw-

the unique details in each.

Make

diagram before

a freehand sketch of the schematic

doing your

final

drawing. Keep the diagram compact while

allowing sufficient space around components for notes and specifications.

Drawing BB-1

Jigs and Fixtures

Drawing CC-2.

—Jig Design.

Wiring Diagrams

Reference Unit 26-1

—Wiring Diagram for Boat.

Reference Unit 27-3.

Keep your design

and as small as

as simple

Complicated designs are more costly

to produce.

3-2 in your text for information on bushings. pin required before or after the

first

hole

is

Is

practical.

is

See Fig. 26the locking

drilled?

Why?

Drawing CC-3.

Drawing BB-2.

Jigs and Fixtures

—

Drill

Jig

Components.

Printed Circuits

Sketch several possible solutions before developing your drawing. See Fig. 26-3-2 in your text for information on

bushings.

—Circuit Board.

Reference Unit 27-4.

Reference Unit 26-2.

final

Keep all components in their same relative positions. Combine pairs or sets of wires into a highway (thick line representing more than one wire.) Label wire colors.

Keep your design

Draw

printed circuit conductors with lands at termination

points connecting electronic

components

keeping with the

in

schematic diagram. Refer to Fig. 27-4-3

as simple as possible.

in

your text as an

example.

Drawing BB-3.

— Dimensioning Jig Drawings.

Jigs and Fixtures

Block and Logic Diagrams Housing Wiring.

Reference Unit 26-3.

Read

Drawing CC-4.

the unit in your text dealing with dimensioning jig

drawings. Study Fig. 26-3-1 before proceeding. Refer to Fig.

— Remote Control

Reference Unit 27-5.

26-3-2 for information on bushings. Remember, the accuracy

Refer to Figs. 27-5-4 through 27-5-7 in your text for the

of the final workpiece will only be as accurate as the design

shape and size of logic symbols. Label

and manufacture of the jig.

Drawing BB-4.

Jigs and Fixtures

— Milling Fixtures.

Reference Unit 26-4. Refer to Appendix Table 80. Design your similar to that

shown

in Fig.

26-4-3

in

own

your

fixture base

text.

Add com-

ponents to the fixture base to complete the design. Design the fixture to be used with a horizontal milling cutters.

26

Overview

machine with dual

all

components.

Kj

h ^

^fi

m

p^

^ k

bo

Ch

N

m

lOl

Ml

o

u.

c 2 C/]

o

^

K

h

c^

k

ki

C5

P^

te

p)

te

k X N

h k ^ ^ ^

k

R

te

k>

Q>

^^

L

k ^ k

h>

k

h-J

k

i o M

! M «

m

FJ

k

k

te U a c « a E

w

hi

LETTERING INCLINED

^

t

REFERENCE UNIT 4-1

LI

DRAWING

NAME r

n

1

1

R

-

QF

DATF

B-2

I.

space hcluw uith lines dra\Mi LMni: the 4?'t tnaniiie. dra\^ parallel Fill the

at

45

lines

to the hori/oii

10 in apan

CONSTRUCTION LINES

STEP

3

STEP 4

SEQUENCE OF STEPS FOR MAKING DRAWING OF GASKET

/

— SYMBOL INDICATES SYMMETRICAL

^

ABOUT

Draw

the izaskcl

shown

to the scale of

CIRCLES AND

I

:

I

.

ARCS-

GASKET NO.

2

Do

THIS CENTER LINE

not dimension.

REFERENCE UNIT

4-2

DRAWING

NAME

.

COURSE

B-14 DATE

On The

the kinds pro\n.lt\l. duplicate the parts shi)VMi letters

sho\\n on the gnds locale ihc parts.

ii II

;2 "2

5Q

ca

+° -3 -3

o

"

+"

S^ w*^ ^

-^ -^

^5

:^.

o E _

SSS

r = 60^

II

II

II

UQ

UJ

^

Ji _u _U

_4)

? 2

.^

i^

i^

-

ci'C

u

"3 v:

i:;

+"—

^ < —C 3y .5 — ^C in 30

—^ 3

5

-J

.

S 2 ^,

< c '$

X

w

g.

W

o, -o

=

tf

g.

s =

=?

2r3

o = c - J ~ — ^ '->

35 •7

C

51,

<>-i — \J 'J C ~ 3

>

-*

r3 *^

O :> j;

oa .E

3-

—

i^

ra

<^5

m

APPLIED GEOMETRYSTRAIGHT LINES

DRAWING

REFERENCE UNIT 5-1

NAME.

COURSE

C-1

A. Draw the

IoIIonmiiv; arcs

R 40 K'issccn R 70 belwccn

linc>

KM)

lines

between R.W) between

C. Join

lines

lines

lines

J-K and

li>

ihc linos

A-B

shmui

H.

(

niisiriict a Lircle

abmil the

|iol\^<)ii

sjioun

CD

and and K F. E-F and G-H G-H and A-B.

CD

L-M

with an ogee curve.

construction line between points

K

and

L.

Draw

The

D.

a light

intersect at a point one-third the length of this line

Draw

a 01. (X) circle using center N. Join line

circle with a R.6(). Join line

arcs should

T-U

and the

R-S and

circle with a

the

R XO

from

point L.

M

+.

Draw

On

a

01.50 using center X. Draw

a

01.20 using center

the top side, join the circles with a R.50.

side, join the circles

On

the

Y.

F.

Construct an arc through points A. B. and C.

bottom

with a R.70.

4-^

\ +v

+v

.4-

APPLIED

GEOMETRY-

ARCS AND CIRCLES

DRAWING

REFERENCE UNIT

5-2

NAME

-

COURSE

C-2 DATE

A. Given the center below, construct a hexagon M) nun acmss comers. On the same center, construct a hexagon

50

mm across flats.

&.^

!

1

MPl

ATJ:: I)ra\^ the template on the grid provided

OCTAGON I

00

Do

not dinicnsion

The

scale

is

I

1

PENTAGON INSCRIBED WITHIN 01.50 HEXAGON 1.25 ACROSS FLATS

ACROSS FLATS SQUARE 1.50

Rl 25

GRID

- 1.00 IN. (.25 IN.

DIVISIONS)

-h^

H-f

^-1-

HOOK: Draw

:

the hook (PT4) on the grid provided. Use your judgment for dimensions not given. Do not dimension. The scale is 1:1.

i

GRID '

^

1.00

IN. (.10 IN.

DIVISIONS)

I

I

PT

; I

A. hl.LlPSl. Cjucii

two

TWOCIKC circles of

1.1

Ml

IHOI)

040 and 060

nim. diavs an ellipse.

\.

nil

I.\

(iivcn a cslindcr t)IC)l 50 X 2.50

m

long. c»)nsiriici

a helix with a lead of 2.50 in. Marling at point

I

Ploi pDinis

every 30".

DEVELOPMENT OF CYLINDER B.

PARABOLA:

Gi\cn

the enclosed rectangles, construct parabolas.

spaces. For the offset method, divide distance

O-A

For the parallelogram method, divide distance

PARALLELOGRAM METHOD

APPLIED HELIX

GEOMETRY-

AND PARABOLA

O-A

into

si.x

equal

into five equal spaces.

OFFSET METHOD

REFERENCE UNIT

5-5

DRAWING

NAME

.

C-6

I

1

— —

I/.

I/.

?, 7.

o

s 5 i

>/,

"^

c

I

5

?, s;

8 S

r~

X » o —

S

?, ?, ri f^ f, f. ri

RS

^«

S S

•/.

I

rl

»»i

f


«

E

cri

y.

ORTHOGRAPHIC REPRESENTATIONTHREE DIMENSIONAL COORDINATES

DRAWING

REFERENCE UNIT 6-1

NAME COURSE

D-4 DATE

"3

-s

3

^-

d

='

5

o

- =

T

^.2*7

Xv

L From

ANGLE BRACKET

the information

shown

Allow

.?() in.

the front view.

in the figure, draw the front and top views using third-angle projection. Point between views. Using a miter line, construct the right side view. The scale is

A

locates the position oi

1:1.

CORNER BLOCK From

the information

shown

of the front view. Allow 10

in the figure,

mm between

draw the front and right-side views using third-angle projection. Point views. I'sing a miter line, construct the top view. The scale is 1:1.

ORTHOGRAPHIC REPRESENTATIONMITER LINES

REFERENCE UNIT

6-2

A locates the

position

DRAWING

NAME

.

COURSE

D-7 DATE

Ill

thf spacf bflou. ilrau

tho guidf bar.

.50

in.

tlic

tup. trdiit. aiul riiihtsidc sif\\s ul

I'scd ihird-aii^lc orthD^raphic prDjcction. Allou

bclween

\ic\an.

Do

not diincn.Mon.

The

scale

ORTHOGRAPHIC PROJECTIONGUIDE BAR

is

l;l.

REFERENCE UNIT

6-4

DRAWING

NAME

.

COURSE

D-12

I

/

L

n

i

In ihc

spacf bclnv^. ilrau

ihf base

l\c

itu' ti>|t. Iroiii,

ami

ri^lit

third aiiiilc Drthoiiraphii. projection.

between views.

Do

not dimension.

The

scale

siilc

ml-us

Allow 20

.i

mm

is 1:2.

ORTHOGRAPHIC PROJECTION-

REFERENCE

BASE

6-5

UNIT

DRAWING

NAME COURSE

D-17 DATE

draw the top. front, and right-side views of Use third-angle ortht)graphic projection. Allow between views. Do not dimension. The scale is 1:2.

In the space below,

the base plate.

20

mm

^^

ORTHOGRAPHIC PROJECTION-

REFERENCE

BASE PLATE

6-5

UNIT

DRAWING

NAME

.

COURSE

D-18 DATE

HK A(

Kl

I

7^

10

I

^8

A

ANGLED STEP BRACKET

'^

L

^

\

PJ^

—

—— I

I

I

I

j^ '

I

I

!

.

——

.

!

i

^ I

I

--

JJ

I

I !

I

I

I

I

T

1

rr -- 4^—

1

1

^^vX^

"Ml From

the intorination

of the front view

is

shown

in the figures,

draw

the top, Iront,

indicated on the drawing area.

Allow

ORTHOGRAPHIC REPRESENTATIONCIRCULAR FEATURES

12)

1

and right-side views using third-angle projection

grid space

The hoiiom

Icti

i.

onu

between views.

REFERENCE UNIT

6-6

NAME

-

COURSE

D-22 DATE

SWING BRACKJ

I

0.94

2X 0.56

0.44

<s>

1-^

±

^n rrrn Ir-® -j-Li

-4.90

-^

J®U

H 2.50-

In the

space below, draw the top M\d Inmt \ie\^s ol the n)vket

ann. Use ihird-angle orthographic projection

between views. IX» not diinenMon The scale

Allow l.^niin is 1:2.

ORTHOGRAPHIC PROJECTIONROCKER ARM

REFERENCE UNIT

6-6

DRAWING

NAME

.

COURSE

D-24 DATE

-o^

From the information shown in the figures, draw the comer of the front view is indicated on the drawing \ieus usintr the letters shown in the ficures.

ORTHOGRAPHIC REPRESENTATIONOBLIQUE SURFACES

top. front,

area.

and right-side views using third-angle projection. The bottom left-hand grid space between views Label the inclined surfaces on all three

.Allow

DRAWING

REFERENCE UNIT

6-7 (2)

1

NAME.

COURSE

D-26 DATE

t 28

-

x:

r3

_o

"5

^

^

yj is

= s

Mi

SPECIAL VIEWSCONNECTOR

REFERENCE UNIT

In the

plate

space below,

shown

make

a

to the scale 10;

working drawing of the adjustable locking Whereser possible, siniplily the drawing I

by using Ci>nventional representation ot

common

features.

P0 33

DIAMOND KNURL

031 12

HOLES

EQL SPACED

ONO

32

50

MATL

CONVENTIONAL REPRESENTATIONLOCKING PLATE

- SAE 1050

DRAWING

REFERENCE UNIT

6-10

NAME

.

COURSE

DATE

D-29

In the

N e

space below, draw the front and top views of the fixture base

to the scale 1:1. o\ the part.

Use two conventional breaks

Add an

to shorten the length

enlarged view of the he.xagonal feature.

SLOT 16 WIDE X 2 DEEP HEX 12 ACROSS ^

/

CORNERS. BOTH SIDES

^

HEX AND SLOT TO BE r/ ROUNDS AND FILLETS R2 MATL CAST STEEL FINISH - HEAT TREAT

i

CONVENTIONAL BREAKSFIXTURE BASE

REFERENCE UNIT

01.20

^ Complete

the lines of intersection.

LINES OF INTERSECTION CYLINDRICAL SURFACES

DRAWING

REFERENCE UNIT

6-12

NAME

.

COURSE

D-31

Make

A uorkinj:

drawing

dI ihc

All surface finishes are 63 ^in.

KEYSEAT FOR SO KEY

fit

with the shall.

Where

rnountmj! bracket to the scale

The keyed hole

recommended on

have an

1:1

KC'fi

show their true removed section

required, rotate features to

distance from the center and edges. is

sht)uld

A revolved

or

a leg.

03.M

0M

ROUNDS AND FILLETS MATL - CAST STEEL

sa

R.I2

VIEW IN DIRECTION OF ARROWA"

+

FORESHORTENED PROJECTION-

REFERENCE

MOUNTING BRACKET

6-14

UNIT

NAME

DRAWING .

COURSE

DATE

D-32

li

I

Make

.1

uorkiii^ drawinj: ot the clutch to the scale 11

finishes are shaft.

I

Where

h

\.i\u

required, rotate features to

the center and edjies is

The keyed hole should ha\e an H'^d'>

A

show

All surlacc fit

vsith the

their tnie distance troin

revolved section to sho\v the sha|v ot the

rib^

recommended.

ROUNDS AND FILLETS R4 MATlOkST STEEL

+

FORESHORTENED PROJECTIONCLUTCH

DRAWING

REFERENCE UNIT

6-14

NAME

-

COURSE

D-33 DATE

t

C 3

- £ u

c:

5 ri

- S i -c ^ > X -

Si

l^i

l\ t£^ tf

_ ^

Ii-

=

2 X

'-'5

5 i

I<*

£ c 3 E K C

u" V c n c C

5.12 ri

2

O

—

£

INTERSECTION OF UNFINISHED SURFACES -SPARKER BRACKET

REFERENCE UNIT

6-15

DRAWING

NAME

.

COURSE

D-35

I

2t-£

=

Q.

3 i

r /"

* 4J

=*

-

«J

5 ? = 3

2^c

n

—H ^

^ 2

I ^ i d.

>

-o

MULTIPLE AUXILIARY VIEWSINCLINED STOP

REFERENCE UNIT

V

-

j=

MULTIPLE AUXILIARY VIEWSCONNECTING BAR

DRAWING

REFERENCE UNIT

7-3

NAME

.

COURSE

DATE

E-6

Make

A detail

iwi) partial

Jr.iumy

pnman,

view, and surface

A

i)t

Drau cumplctc tup and lioiii mcws aiul The centers ut the lour holes liKute the toji other three views on the drawing area. The scak

llic an^ili.-

stop

auxiliary views. k)cates (he

is 1:1.

ROUNDS AND FILLETS R W MATL -GRAY IRON

-"

40

K

4-

MULTIPLE AUXILIARY VIEWSANGLE STOP

REFERENCE UNIT 7-3

DRAWING

NAME COURSE

E-7 DATE

i

SURFACES MARKED

M.ikc '.'

TO BE

ROUNDS AND FILLETS R MATL - GRAY IRON

the dovetail

Draw complete tt)p and front vieus and partial pnrnan and secondars auxilian views. The front, tt)p. and pnmar> auxiliar> views are liKaled on the drawing area. The bracket

12

HEX 70ACRFLT PERPENDICULAR TO THIS SURFACE

scale

4X O

a detail iJra\^ini; ol

'.

is 1:1.

312

0.60 SFACE

TOP VIEW

BASE OF FRONT VIEW

SECONDARY AUXILIARY VIEWSDOVETAIL BRACKET

DRAWING

REFERENCE UNIT

7-4

NAME

.

COURSE

E-8 DATE

1

A.

B*

T

C»

C« B.

F

Locate the points

in the side view.

C» A. B>

F

A«

B»

C» Locate the points in the side view.

S

A'^

^Q UJ

< ^

I

LU

_l

LLI

^ u.

>i ^< I

LU

—

LU

t

CD

Z

CO y-

do £9

m

>z< HO I< ^W UJ

LU

O

E9

m

CO

HCi > c (U

1^

.-ti

I<


4J

_J LU

mz

—I LU

mz

^(/)

LU

^

^

o

>z LU <

Si

u-

O

—

"O

M

o

i

• P

• p

RLI

RLI

•P • P

Find the distance between point

Find the distance between point P and line C-D.

P line and A-B.

B

RLI RLI

Find the shortest distance between lines

A-B

and C-D.

DISTANCE BETWEEN LINES AND POINTS

Find the shortest distance between lines

UNIT

7-9

E-F and G-H. DRAWING

REFERENCE

NAME.

E-14 COURSE.

DATE.

RLI RLI

Find the true angles of

EFG

and FGH.

Find the true angles of

RLI

Find the true view of plane

and BCD.

RLI

ABC.

EDGE AND TRUE VIEW OF PLANES

ABC

Find the true view of plane DEF.

REFERENCE UNIT

7-10

DRAWING

NAME. COURSE.

E-15

Find the angle that Hne

U-V

makes with plane ABC.

RLI

Find the angle that line

M-N makes with plane ABC.

ANGLE BETWEEN LINES AND PLANES

DRAWING

REFERENCE UNIT 7-11

NAME. COURSE.

E-16

BASIC DIMENSIONING— VERTICAL GUIDE

REFERENCE UNIT 8-1

DRAWING

NAME. COURSE.

F-2

Make The

a

one-view drawing, complete with dimensions, of the adjustable

scale

sector.

is 1:1.

FILLETS R5

DIMENSIONING CIRCULAR FEATURES-

REFERENCE

ADJUSTABLE SECTOR

8-2

UNIT

DRAWING

NAME.

COURSE

F-4

Make

a three-view drawing, complete with dimensions, of the bracket.

Place the dimensions with the view that shows best the shape of the part or feature.

The

scale

is 1:1.

DIMENSIONING CIRCULAR FEATURESBRACKET

REFERENCE UNIT

.56

Redraw the handle shown to the scale and dimensioned in the locations shown.

(A) 45 °x. 10 (B)

in.

The following

.80

from

features are to be added

chamfer

33DP diamond knurl left

1:1.

for 1.20

in. starting

in.

end

1 :8 circular taper for 1 .20 in. length on right end of 01.25 in. (D) .16 X 0.54 in. undercut on 0.750 (E) 0.189 X .25 in. deep, 4 holes equally spaced (F) 30° X .10 in. chamfer (the .10 in. dimension taken

(C)

horizontally along the shaft)

0.750

1.25

DIMENSIONING

COMMON FEATURESHANDLE

DRAWING

REFERENCE UNIT

8-3

NAME.

F-6 COURSE.

DATE

Redraw

the adapter plate four times to the scale 1:1. Different

methods

of dimensioning should be used for each drawing: rectangular coordinate, polar, arrowless, and tabular.

HOLE DIA

LIMITS

AND TOLERANCES

AND TOLERANCES

LIMITS

AND TOLERANCES

LIMITS

-3.44 ±.06-

2.38 ±.01-

+ °°-

3^0 •*°"

M

F

-.02

-3.00 +.00 -.03

H.25±.03HI.00t;0'

1.75 ±.01

r

.75±.0I^^R

-2.00 ±.02-

XXX XXX ,.502 .498

XXX "•'/o -0.240 ±.00

2

1

+.00 -.02

c>-^>

i-XXX

-:r

.320!°°' 3 HOLES -.000

HOLES

D

Complete

this chart from the information given above.

Complete

this chart from the information given above.

Complete

this chart from the information given above.

BASIC SIZE

BASIC SIZE

BASIC SIZE

TOLERANCE

TOLERANCE

TOLERANCE

LIMITS

MAX

LIMITS

MAX

LIMITS

MAX

OF SIZE

MIN

OF SIZE

MIN

OF SIZE

MIN

INCH LIMITS

LIMITS

AND TOLERANCES

LIMITS

AND TOLERANCES

AND TOLERANCES

LIMITS

AND TOLERANCES L -90 ±1.5-

-70 ±0.25-

KM

-75 -0.76"

50 ±0.5-

r

20±0l25|»— R

K— XX

-0 6 ±0.02

2

-

1

[12.50 12.46

020

50 ±0.25-

25 "^ -0.05

£>-^>

i-xx

-0.02

0,0+0.023 HOLES

HOLES

D

Complete

this chart from the information given above.

Complete

this chart from the information given above.

Complete

this chart from the information given above.

BASIC SIZE

BASIC SIZE

BASIC SIZE

TOLERANCE

TOLERANCE

TOLERANCE

LIMITS

MAX

LIMITS

MAX

LIMITS

MAX

OF SIZE

MIN

OF SIZE

MIN

OF SIZE

MIN

MILLIMETER (METRIC) LIMITS

Calculate the sizes and tolerances.

LIMITS

AND TOLERANCES

REFERENCE UNIT

AND TOLERANCES

CLEARANCE

FITS

(RUNNING OR SLIDING)

INTERFERENCE FITS (FORCE OR SHRINK)

TRANSITION FITS (LOCATIONAL)

O

CLEARANCE-

CLEARANCE LC2

LOCATIONAL CLEARANCE

INTERFERENCE-

1~^

^i+^.. T,

J

TRANSITION

]_ 2-1,

LT3

LOCATIONAL TRANSITION

RC2 SLIDING FIT

-&^r-H I

a"T

'-

-01.25

^ FN

I

J.

FORCE

FIT

1-01.25

T

INTERFERENCE

^

INTERFERENCE-,

CLEARANCE-

LN2

0J

LOCATIONAL INTERFERENCE

01.00 ID

Complete

[-01.50

P

this chart using the

limit

1

--02.00

and

fit

proper

tables.

FN4 SHRINK FIT

C 0-

RC5 RUNNING FIT

Complete

this chart using the

limit

and

fit

Complete

proper

tables.

CLEARANCE

this chart using the

limit

P

fit

proper

tables.

CLEARANCE AND INTERFERENCE

INTERFERENCE FITS

FITS

and

0K-

XX 0.7500 +.0020

\X\

-,

1.5018 1.5024 -

n

1.5010 1.5000'

L XX

FITS

L0J

^

1.2510 *'l.2500

A

1 A

Ql.

02.

D

.7512 .7500

G

+.0010 -.0000

1.2500

M

03. 1

1

.2475 .2469

r

04.

XX

J C 0-7492 ^

DIMENSION SHAFT (J) TO HAVE A TOLERANCE OF .0012 AND A MINIMUM CLEARANCE OF .0025. DIMENSION BUSHING (K) TO HAVE A TOLERANCE OF .0010 AND A MAXIMUM INTERFERENCE OF .0016. DIMENSION SHAFT (J) TO HAVE A TOLERANCE OF .0012 AND A MINIMUM CLEARANCE OF .0014. DIMENSION BUSHING (K) TO HAVE A TOLERANCE OF .0008 AND A MAXIMUM INTERFERENCE OF .0022.

.7484

Complete this chart from the information given above.

Complete this chart from the information given above.

TOLERANCE ON HOLE TOLERANCE ON SHAFT MINIMUM CLEARANCE

TOLERANCE

MAXIMUM

MAXIMUM

CLEARANCE

INTERFERENCE

FITS

01

ON PART TOLERANCE ON SLOT MINIMUM

02

03

INTERFERENCE

Using the table of

fits in

Complete this chart from the information given above.

04

the appendix, calculate the missing dimensions.

AND ALLOWANCESINCH

DRAWING

REFERENCE UNIT

8-6

NAME.

COURSE

F-11

CLEARANCE

FITS

(RUNNING OR SLIDING)

TRANSITION FITS (LOCATIONAL)

CLEARANCE

INTERFERENCE FITS (FORCE OR SHRINK) INTERFERENCE-

CLEARANCE-! H7/h6

LOCATIONAL CLEARANCE

--02O

-L

TRANSITION-!

K7/h6

,

^_L_^^-L

LOCATIONAL-k-- 4-030 TRANSITION -y

G7/h6 SLIDING FIT

I

'^^^

'

0H

^ ~T

INTERFERENCE-

CLEARANCEH7/p6 19

—

LOCATIONAL INTERFERENCE Complete proper

H9/d9

RUNNING

Complete proper

FIT

this chart using the

limit

and

fit

tables.

— 0J

1 t

this chart using the

limit

and

fit

tables.

t

032

3-L 035

—

INCH FITS .812

FN

2

\^

.312

RC 7S (A)

SHAFT HOLE

IN

BUSHED

(B)

GEAR AND SHAFT BUSHED BEARING

IN

(C)

CONNECTING-ROD BOLT

(D)

LINK PIN (SHAFT BASIS FITS)

(E)

BASIC

DESIGN

DIAMETER

SKETCH

SIZE

SYMBOL

BASIS

FEATURE

LIMITS

MAX

IN.

HOLE

.375

PIN IN

CLEARANCE OR

OF SIZE MIN

CRANK

CAST IRON

INTERFERENCE

MAX

MIN

HOLE SHAFT

HOLE

.250

HOLE SHAFT

HOLE

.500

HOLE SHAFT

HOLE

.625

HOLE SHAFT

HOLE

.750

HOLE SHAFT

HOLE SHAFT

.312

SHAFT

HOLE

HOLE

.188

SHAFT

HOLE SHAFT

.312

SHAFT

HOLE HOLE

.812

SHAFT

Using the inch tables of fits

in the appendix, calculate the

FITSINCH

missing dimensions.

DRAWING

REFERENCE UNIT

8-6

NAME. COURSE.

F-13 DATE.

010

p

H7/p6-^^

06

-r-5

^.2

^

-7!

B U
(U

3 _ W <^ s ->.

cxx;

ii r3

3

U


2 E

^

5 E

J>

Q

^ ^


3

g

"*

E

Xi

FITS

,o

a 5 C3

J^ Xi

-3

O

k-

2 "^« -oc

^ ^O <mub w c^

tS

o 2 o

E .2

« o

o

xj

«5

•I

c

t-

>-

.2 -5 r^

—

>^-^

K Si: =: '^ ? 2 3 s -a c "^ o o o p o .S

T3

^ U E g^

f^

2

X

,

O

i

(U

AND ALLOWANCESSPINDLE

REFERENCE UNIT

8-6

DRAWING

NAME. COURSE.

F-15

+

Make

a two-view working drawing of the link. The amount of material to be removed from the end surfaces of the hub is .09 in. and .06 in. on the bosses and bottom of the vertical hub, respectively. The two large holes are to have an LN3 fit for journal bearings. The scale is 1:1. The location of the 01.88 hole is shown on the drawing area.

SURFACE TEXTURELINK

DRAWING

REFERENCE UNIT 8-7

NAME. COURSE.

F-16

c O c O

—^

5

'^

3 S C S C r^

2 3

W o Z -J D H O < X 5 1

I

E

^o

x;

o o 2

5 Vl-r

O

c

sO

Q..=

2

C3

5Ji

> = 2

'

§^ a c o
S > ^ a o

-S -'

*-•

2 & ^ (50 JJ _2 •S -S .H --^ o ^ < O l> c u

c

C .«

"> 0)

u

,,

o " O

° '-5 C o


I—

ID

O > M 2 o

-C

(U TO

CJ

(U

rrt

TWO OR MORE

SECTIONS-

CASING

DRAWING

REFERENCE UNIT

9-2

NAME. COURSE.

DATE

G-3

-+

+-

,

-+

+

Make MATL

-

a one-view half-section drawing of the

step pulley.

MALLEABLE

Add

a partial view to

hole and key detail.

IRON

HALF-SECTIONSSTEP PULLEY

REFERENCE UNIT

The

scale

show

is 1:1.

the

KEYSEAT FOR SQ KEY AND .INTERCHANGEABLE ASSEMBLY-

Make

a one-view half-section drawing of the

step-V pulley.

Add

hole and key detail.

a partial view to

The

scale

show

the

is 1:1.

1.127

MATL - MALLEABLE IRON ROUNDS AND FILLETS R.I6

HALF-SECTIONSTEP-V PULLEY

REFERENCE UNIT

9-3

DRAWING

NAME. COURSE.

DATE

G-6 .

-HEX 4.00 ACRFLT

125

INCH NPT

Make

a detailed half-section drawing of the pipe plug to the scale 1:1.

Use symbolic dimensioning wherever possible and add undercut

ROUNDS AND FILLETS R

MATL - MALLEABLE IRON

.10

THREADS

sizes.

IN

PIPE

SECTION-

PLUG

REFERENCE UNIT

9-4

DRAWING

NAME.

COURSE

G-7

4

HOLES EQL SP 14 CBORE X 10,

ROUNDS AND

Make 8

DEEP ON

98-

a detail drawing of the end plate to the scale 1:1. Determine the number of views and the best type of section that will clearly describe the part. Use symbohc dimensioning wherever possible and add undercut sizes.

FILLETS R2

MATL-MALLEABLE IRON

THREADS

IN

SECTION-

END PLATE

REFERENCE UNIT

9-4

DRAWING

NAME. COURSE.

G-8

Make item FILLETS

AND ROUNDS

a one-view section assembly drawing of the flanged connection. Include an

list

and identify the parts on the assembly. The scale

R2

4X 0I3EQLSP

FLANGES HELD TOGETHER BY MI2 X 1.75 X 45 LG HEX HD BOLTS WITH LOCKWASHERS

2mm NEOPRENE GASKET BETWEEN FLANGES SQKEY

QTY

is 1:1.

FASTEN ASSEMBLY TO A 6mm STEEL PLATE BY FOUR M 10 X 40 mm LG HEX HD BOLTS, NUTS AND LOCK WASHERS. SHOW THE STEEL PLATE IN PHANTOM LINES.

ROUNDS AND FILLETS R 3

PT

I

- TOP PLATE

MATL - MALLEABLE IRON

FIT

n

n

z o

i s

n

n

s :S

—=

Make

a three-view working drawing of the shaft support

to the scale

1

:2.

Show

the front

and the right-side view as a

view as an

offset section

full-section taken through the

(Z)I6.I

HOLES SYMMETRICAL ABOUT CENTER LINE

ROUNDS AND FILLETS R3 MATL- MALLEABLE IRON

2

center of the part.

RIBS 8mm THICK LOCATED ON CENTER LINES

RIBS, HOLES,

AND LUGS-

SHAFT SUPPORT

REFERENCE UNIT

9-7

DRAWING

NAMECOURSE.

DATE

G-14

Make Show

two-view working drawing of the connector to the scale 1:1. arm on the top view. The machined surfaces are to have a surface texture rating of 1 .6 and a machining a

a revolved section of the

allowance of 2

mm.

-0 6

THRU 12 BOTH SIDES

1-10

ROUNDS &

REVOLVED SECTION-

REFERENCE

CONNECTOR

9-8

UNIT

FILLETS R6

T

3

DRAWING

NAME_ COURSE.

DATE

G-15

c 2

-o

o

I

Make

two-view working drawing of the offset Draw the side view in full-section and show a revolved view of the spoke in the front view. The scale is 1:1. The front view is located on the drawing area. a

handwheel.

ROUNDS AND FILLETS R3

MATL- CAST STEEL

04 SLOT

+

SPOKES AND ARMSOFFSET HANDWHEEL

REFERENCE UNIT

Draw

the front and top views of the

scale 1:1.

Use

hold-down bracket

a broken-out section to

show

to the

the large hole,

and boss detail on the front view. Dimension only the hole and retaining ring slot sizes. The bottom right retaining ring slot

corner of the front view

ROUNDS AND

is

located on the drawing area.

20 H8

FILLETS R3

MAIL- MALLEABLE IRON

GROOVE FOR MN5000-20 INTERNAL RETAINING RING (SEE APPENDIX FOR SIZES)

BROKEN-OUT SECTION—

REFERENCE

HOLD-DOWN BRACKET

9-10

UNIT

DRAWING

NAME. COURSE.

DATE.

G-18

I

O

1

t«

^

I'f
— -

O D

'S

c o

2

^ > C3 > CJ
« c c t3

PHANTOM SECTIONBEARING HOUSING

REFERENCE UNIT

2 o

o •5

x:

^

00

3 O

O O 1)

^2.- — '^

n


6 '^ 5 ^


OB .3

o c c

-^

£

•£

S£5

PHANTOM SECTIONHOUSING

REFERENCE UNIT 9-11

DRAWING

NAME. COURSE.

DATE.

G-20

On

a blank sheet of drawing paper

from the back of this workbook, make a working drawing of the domed cover. Select the number of

views, scale, and appropriate sectional views that will improve the clarity of the drawing.

SECTION REVIEW-

REFERENCE

DOMED COVER

9-12

UNIT

DRAWING

NAME. COURSE.

DATE

G-21

ASSIGNMENT

ROUNDS & 1

MATL-ASTM CLASS 50 GRAY IRON ROUNDS AND FILLETS R.I2

a blank sheet of drawing paper from the back of this workbook, make a working drawing of one of the parts shown. Select the number of views, scale, and appropriate sectional views that will improve the clarity of the drawing.

SUPPORT & DRILL PRESS BASE

SUPPORT

DRILL PRESS BASE

On

SLIDE

SLIDE

^2.00

ASSIGNMENT 2

SECTION REVIEW-

FILLETS R. 10

MATL- GRAY IRON

REFERENCE UNIT

eg

2

s

j~ "^

<->

jz -a

c

-^

s

•a "O

it o C

^ v^

SIMPLIFIED THREAD REPRESENTATIONGUIDE BLOCK

DRAWING

REFERENCE UNIT 10-1

NAME. COURSE.

H-1 DATE

1.

Make this.)

2.

drawings of the tumbuckle parts. Show only one drawing two eye bolts. {Hint: See Fig. 6-9-5 for one method of accomplishing

detail

for the

The

scale

is 1:1.

On one

of the blank drawing sheets from the back of this workbook, make a one- view assembly drawing of the tumbuckle. Show the assembly in its shortest length and also indicate the maximum position shown in phantom lines. (At least four threads must be engaged for each eye bolt.) The scale is 1:1. Include an item Ust and identify the parts on the assembly.

312-18

UNC-2A

312-18UNC-2B

•.3I2-I8UNC-2B-LH

.3I2-I8UNC-2A-LH

SIMPLIFIED THREAD REPRESENTATION

—TURNBUCKLE DETAILS

DRAWING

REFERENCE UNIT 10-1

NAME. COURSE.

H-2 DATE.

1.

Make

drawings of Parts 1 through 4 of the parallel 1 and 2, draw two views for each. For parts make one- view drawings and use a conventional break

detail

clamps. For parts 3 and 4,

to shorten their lengths. 2.

On one make 50

The

scale

is 1:1.

of the blank drawing sheets from the back of this book,

a one-view assembly drawing showing the clamps

mm. The

materials

scale

is 1:1.

Add

part

open numbers and include a

list.

'^

04.8X6 DEEP

PT 2 STATIONARY JAW I

MOVABLE JAW REQD MATL-SAE 1020 PTI I

REQD MATL-SAE

1020

R4.5

AS SHOWN OTHERWISE SAME AS PTI PT 6 MACHINE SCREW RD

M3 X

10

LG -

I

HD

REQD

wR6-^ PT 5 CLIP

MATL

SIMPLIFIED THREAD REPRESENTATION —PARALLEL CLAMPS DETAILS

REFERENCE UNIT 10-1

1.52 (16

USS)

DRAWING

NAME. COURSE.

DATE

H-3

'5

s

o > > Q.

SIMPLIFIED THREAD REPRESENTATIONTERMINAL BLOCK

DRAWING

REFERENCE UNIT 10-1

NAME. COURSE.

H-4 DATE

T3

-J

ZO

X

Q

CC

LJ.

uj :3


W

IJJ

<

.

-HX

XtC D

W

l-Oz< I-


XH

nH> -^ _ z

z o— Q CSi

oQ ifl

<

CM LU

= ?

^ c -'-

J COMMON THREADED FASTENERS-

REFERENCE

SHAFT INTERMEDIATE SUPPORT

10-3

UNIT

DRAWING

NAMECOURSE.

H"7

1.

Make

detail

drawings of the wheel puller parts

space below.

The

scale

is

1:2.

in the

Use simplified thread

representation. 2.

On

one of the blank drawing sheets from the back of this make a one-view assembly drawing of the wheel

book,

The scale is 1:1. Lower the center bolt or use a conventional break to shorten the assembly height and to puller.

accommodate an item

list.

Add

part

numbers

to the

assembly.

COMMON THREADED FASTENERSWHEEL PULLER DETAILS

REFERENCE UNIT

I

.

PT3 YOKE MATL-Cl REQD

1

I

ROUNDS AND FILLETS R

3

Make a one-view assembly drawing of the adjustable shaft support. Show the base in full-section. A broken-out section is recommended to show clearly the setscrews in the yoke. Add part numbers to the assembly.

2.

FT

7

10

2

The

scale

is 1:1.

20 H8f7 FIT

LG

REQD

^—

2

ROUNDS AND FILLETS R

r0 PT8 HEX HD JAM NUT MIO 2 REQD

WITH PT

-0 38

HEX SOCKET DOG POINT

PT6 SETSCREW MIO X 30 LG 2 REDD

not dimension.

one of the blank drawing sheets from the back of this book, make working drawings of Parts 1, 3, and 4. The scale is 1:2.

SETSCREW

MlOX

Do

On

3

3

SLOTS

20 H8f7 FIT

WITH PT

2

^70.

+ PT BASE MATL-Cl REQD I

I

-0 20H9 25 H7s6 FIT WITH PT 4

PT5 BEARINGS MATL-BRONZE 2 REQD

CSK 06 X 90° 3 HOLES SPACED AT 90° 25-

H7s6 FIT WITH PT

5

PT4 BEARING HOUSING MATL-STEEL REQD 1

CHAMFER BOTH ENDS

45= X 2

-

14-

20H8f7 FIT

WITH PT

AND

I

3

V^ PT 2 VERTICAL SHAFT

MATL-STEEL

SPECIAL FASTENERS-

REFERENCE

ADJUSTABLE SHAFT SUPPORT ASSEMBLY

10-4

UNIT

I

REQD

DRAWING

NAME. COURSE.

H-9

1

.

Make in the

a detail drawing of the front

space below. The scale

is

jaw

2.

1:1.

On

one of the blank drawing sheets from the back of this book, make a two-view assembly drawing of the woodworking vise. Include an item list calling for all the parts. The scale is 1:2.

I|-^~^PEEN AT ASSEMBLY (-—0.25

FASTENERS FOR WOODWOODWORKING VISE DETAILS

REFERENCE UNIT

06.00 V-BELT PULLEY

'

0L25

02.00

STEPPED SHAFT

SQUARE KEY

Complete the assembly drawing by adding a square key and hex nut

to lock the pulley to the shaft.

The

scale

is 1:2.

GEAR

0L5O FLAT

WASHER 0LOO TAPERED SHAFT

LI25ACRFLTHEXNUT

.750-10

UNC

WOODRUFF KEY

Complete the assembly drawing by adding a Woodruff key

KEYS, SPLINES,

AND SERRATIONS-

KEY FASTENERS

to lock the gear to the shaft.

UNIT 11-1

The

scale

is 1:1.

DRAWING

REFERENCE

NAME. COURSE.

J-1

r

e—0T 3.00

2.00

1.00

1.00

3.50

2.75

TRACTOR

DRAW BAR

4 - 0.38 RIVETS TRAILER HITCH

—

ASSEMBLY

x--rx-r::i 1

i

.75

1.00

_L

I.I

/

\.J

IN

]=Z]

i.

50

I.I

V7

DRAW-BAR HITCH ASSEMBLY Complete the assembly.

A clevis

trailer hitch to the tractor

draw

pin with an area equal to the four rivets

bar.

The

scale

is

used to fasten the

is 1:2.

r^^ 0.50

PUSH ROD

.50

1.00

U

CAM FOLLOWER Complete the assembly.

A type E grooved pin holds the roller to the bracket. A washer and cotter

pin are used to fasten the bracket to the push rod.

PIN

The

FASTENERS—

DRAW-BAR HITCH AND CAM FOLLOWER

scale

is 1:1.

REFERENCE UNIT

u

n

1-

d

ROLLER ASSEMBLY Complete the assembly. External self-locking retaining ring hold the roller shaft in position on the bracket. Plate washers between the retaining ring and the bracket are added to reduce friction. Add groove sizes and identify the retaining rings. The scale is 1:1.

y
LENS

b^

K^ I

L25

VIEWER CASE

Complete the assembly.

An external self-locking retaining ring holds the plastic housing to the Add groove sizes and identify the retaining rings. The scale is 1:1.

holds the lens in position.

RETAINING RINGSROLLER ASSEMBLY AND VIEWER CASE

REFERENCE UNIT

viewer case.

An

internal self-locking ring

1.

2.

Complete the punch-holder assembly. The two helical springs have plain closed ends and are 0.06. They have a pitch of .10 in. The plunger and punch are held in the punch holder by retaining rings. An RC3 fit is required for the 0.30 shaft. Show on the assembly drawing the limit dimensions for the 0.30 hole and shaft and the dimensions of the retaining-ring grooves. The scale is 1:1. In the space below the assembly, make detail drawings of the springs.

PLUNGER

0.30

CARD STOCK

THREADED DIE STOP

SPRINGS—

REFERENCE

PUNCH-HOLDER ASSEMBLY

11-4

UNIT

DRAWING

NAME. COURSE.

DATE

J-6

2L 4.00 X 4.00 X .38

44

GUSSET

2L 3.50 X 3.50 X. 38

M: LARGE STRUCTURAL RIVETS

Complete

the assembly.

The roof truss is assembled The scale is 1:4.

in the

shop with five evenly spaced

0.50-in. rivets in each angle.

LOCKER DOOR

14

GA

h 0.25

_L^^

MAX

y^s

HOLE

-r-rr

zzdziza

CL.I2

«\\\\\\ f<<(«(^^<4 DOOR FRAME BLIND RIVETS

Complete the assembly. The padlock brackets are riveted two blind rivets in each bracket. The scale is 1:1.

RIVETSSTRUCTURAL AND BLIND RIVETS

to the locker

door and door frame with

DRAWING

REFERENCE UNIT

11-5

NAME.

COURSE

J-7

Redraw at the scale of 1:10 and complete the assembly shown. Use the graphical symbols of rivets for aerospace equipment and note the following information: (a)

Assembly A. 08

rivets equally

spaced

at

55 on center; item

references 22; 100° countersunk both sides; preformed head near side.

(b)

Assembly

B.

06 combined

rivets equally

spaced at 50 on preformed

center; item reference 19; sleeve item reference 21;

head (c)

far side.

Assembly C.

04

near side.

i

RIVETSRIVETS FOR AEROSPACE EQUIPMENT

REFERENCE UNIT

spaced at 40 on center (4 preformed head far side; 82° dimple

rivets equally

sides); item reference 16;

\\

B

y//

1.25

-.80

r ^

1.60

e

BRACKET .15

nr

THICK

^

r V. PIPE

01.00

PIPE

Complete the assembly. Two resistance-welded threaded fasteners, one on each side of the the fasteners, and lockwashers and nuts secure the bracket to the pipe. The scale is 1:1.

PANEL .25

IL^^

ATTACHMENT

pipe, are required.

The bracket drops over

ADAPTER

THICK

.38

R

2.75X1.38X1.00

0.502

HOLE

.44 R

0.34 0.75 SPACE 2

HOLES

LEAKPROOF ATTACHMENT Complete the assembly.

A leakproof attachment

to hold the adapter to the panel.

The

scale

WELDED FASTENERSPIPE

method

(stud welding)

is

recommended

is 1:1.

AND LEAKPROOF ATTACHMENTS

DRAWING

REFERENCE UNIT

NAME.

11-6

COURSE

J-9 DATE

T3 *J

1.

Complete the item

2.

On

list

for this assembly.

the blank sheets

from the back of this book, prepare detail drawings of the wheel assembly. The shaft should have an RC4 fit with the bushing, and the bushing an LN3 fit in the body. Use your judgment for the selection and the number of views for each part.

08.00

OILLESS BUSHING

QTY

Make

R.50

The

a one-view assembly drawing of the universal joint.

scale

is 2:1.

.516

2X 0.28

\/0.5OX 82° 4X .250

rrhi III

II

Uj-lJ

+

01.00

-0

PT

I

-

.25

THRU

FORK -2 REQD

r-*-+-

—

-

20

UNC 2B X^.3I

Include an item

list.

1

X.

Make

a working drawing of the raising bar.

Show

the

acme

thread using detailed representation. Select a suitable steel for the part.

The

scale

is 1:1.

375-24UNF-2A 0.375 .75

.374

ACME THREAD OD = C) .625 PITCH = .25 DOUBLE THREADS

45° X

CARBON STEELRAISING BAR

DRAWING

REFERENCE UNIT

12-2

.312-24UNF-2B X ^.62

NAME-

COURSE

K-2

Make

a three-view

clamp.

Add

located at line

C

scale

is 1:2.

NONFERROUS METALS— OUTBOARD MOTOR CLAMP

EFERENCE UNIT

lines or surfaces marked A, B, and and use arrowless dimensioning. The

Select a suitable material, noting that the part

water-resistant, have a painted finish, have

strength,

R.06

AD. Use

as the zero lines

must be

ROUNDS AND FILLETS

working drawing of the outboard motor

a full-section top view with the cutting plane

and have a

light

weight or mass.

moderate

Make

a one-view exploded orthographic assembly drawing of the connecting link. Complete the material list. The student is to select the materials.

.250-20UNC-2B

QTY

-0 .6250

The

scale

is 1:1.

ti •c

ca

•a

c c

^

ii

E 3

.2

(u


"a,

(U

•

u — CON" « U '^ .^ -L


c o

C (U

OJ c«

5j ?5

i«

«

H

O

CL,

"-

I

Z I<<

C u o

•5 J=

on

>

C

(U

•a 60

s O

C

^

CJ

o

H .

c $

1"° cS

2 -^ C > ^- c (u J= o = a o ^ g o u. O

'3

C o ^
c .5 O c ^

CASTINGSCONNECTOR

REFERENCE UNIT 13-1

DRAWING

NAME. COURSE.

L-1 DATE

Redesign tJie fabricated swing bracket into a cast part. Draw the front and side views. Show the limit sizes where fits are indicated. Surfaces shown by the letter A are to have a maximum roughness of 1 .6 ^m and a machining allowance of 2 mm. The scale is 1:1. The center of the 034 is located on the drawing area.

CASTINGSSWING BRACKET

REFERENCE UNIT

1

€

'

to

c

oj

—

= s a

w c =« 2 ^

1

o
£

H

(U

S *o o .S

'^

O ?

« c « o =

•o

^2

= o

9 c D. O " o

POWDER METALLURGYBRACKET

DRAWING

REFERENCE UNIT

13-3

NAME.

L-4 COURSE.

Using a plastic molding design, add threaded inserts to the pi\ot arm shown. Use your judgment for dimensions not shown and the type and

number of views

required.

The

scale

is 1:1.

ROUNDS AND

PLASTIC MOLDED PARTSPIVOT

ARM

FILLETS R5

DRAWING

REFERENCE UNIT

NAME.

13-4

COURSE

L-5

After the

reviewed,

number of drawings made over the last six months was it was discovered that many cable straps were similar in

design. Prepare a standard tabulated drawing similar to Fig. 14-1-1,

reducing the number of standard parts to

The

4.

scale

is 1:1.

0.386

-0.50

0-277

R.50

1.00

J

T,

277

R50

0.277

,

-2.00[--1.00—

1.00

1

'TZJ

PT NO.

Redraw the cover plate shown using arrowless dimensioning and simplified drawing practices. Use the bottom left-hand comer of the top view as the datum surfaces. The scale is 1:12.

SIZE

5

DETAIL

DRAWINGS-

SWIVEL HANGER

REFERENCE UNIT

14-3

DRAWING

NAME. COURSE.

DATE

M-4

'

^ W 1O UJ

I ^ Q-

LU CD

_

.A^ CO ILU

^ 9 W < 2 P LU
lU -!

—

< I X Q Q 3 H !i:

O

— c "" o ^ o > iM

80 J3 ii

E •S

O

o J-

3 o o "4-1

rt

E

1° i

o O

=

'^

|s (U

C o O

> z

f^

^

«
OA

I ^ "5 s a— > .5

-I

c9

=f

H S5

U

(U

^

5 O

"^ •£

x; 42 C3

DETAIL DRAWINGSLOCATING STAND

REFERENCE UNIT 14-3

DRAWING

NAME. COURSE.

DATE.

M-5

As assigned by your

instructor, on one or more of the blank drawing sheets from the back of this book, prepare detail drawings of any

028H9/d9, 045H7/s6, and 035H8/f7. For the adjustable pulley, an RC4 fit is required for the 01 .20 shaft. The scale and selection

of the parts assigned by your instructor from the assembly drawings shown. For the pulley assembly, the following fits are to be used:

of views are to be decided by the student. Include an item the parts.

FRAME

1

5 WASHER

2 SHAFT

6 NUT

3 PULLEY 4 COLLAR

7

-0.60

BOLT 8 WASHER

CORED HOLE

^7

LOOO-

-0

ASSIGNMENT

07.5X80 DEEP

.

125 IN. X 27

I

— ADJUSTABLE PULLEY NPT iri-y

^-M24 PREVAILING TORQUE NUT

WOODRUFF KEY #808 3 RIBS 8mm THICK EQUALLY SPACED-

200-

8x4 KEYSEAT Zyl.

ASSIGNMENT

MULTIPLE DETAIL DRAWINGSADJUSTABLE PULLEY AND PULLEY ASSEMBLY

2

— PULLEY ASSEMBLY

REFERENCE UNIT

2.00

12

UN F

-

2A

list

for

DRAWING REVISIONSAXLE CAP

REFERENCE UNIT

14-5

DRAWING

NAME. COURSE.

DATE.

M-7

o

D-

QTY

I

i

QTY

'

Make

a one-view subassembly drawing of the wheel.

or partial section view

recommended

is

to

show

A broken-out

the interior features,

Include on the drawing pertinent dimensions and identification PT

I

- TOP PLATE

44

MATL - MALLEABLE IRON

part numbers. plate. is

Show

1:1.

Four

010-mm

bolts fasten the

the bolted connection

The center

line of

PT4

on the is

wheel to an

right side only.

8-mm

The

scale

located on the drawing area.

Ok 37

^'^^''^^^^--^^n^'N^

ROUNDS AND FILLETS R5 ALLv^SHOWNTOBE '"y^ 1-017.9

^^ 018 PT 3 - AXLE SUPPORT

MATL - MALLEABLE IRON

'3

SUBASSEMBLY DRAWINGSWHEEL ASSEMBLY

PT 2 - WHEEL MATL - MALLEABLE IRON

REFERENCE UNIT

14-9

DRAWING

NAME. COURSE.

M-12

o

E d O
E o O -n U

.22

Sea

oT o e

O

-

(U

E c "O "O

S<

-

1

1

Make an isometric drawing, complete with dimensions, of the base. The location of point is shown on the drawing

A

area.

The

scale

is 1:2.

CURVED SURFACESBASE

REFERENCE UNIT

-3.500-4UNC

Make

an isometric full-section drawing, complete with dimensions, Do not show hidden lines. The 02.50 is located

of the adapter shown.

on the drawing surface. The scale

is 1:1.

^

COMMON FEATURES

IN

ADAPTER

ISOMETRIC-

REFERENCE

DRAWING

UNIT

NAME.

15-3

COURSE

N-5

Make

an isometric assembly drawing of the two-post die

set,

Model

304.

The

scale

is 1:4.

list.

Allow 2.00

Do

in.

between the top and base.

not dimension. Complete the item

Using part numbers, identify the parts on the assembly. the base is located on the drawing area.

The bottom of

UJ

N CO

I

I

Make

a half-section cabinet oblique

to the scale 1:1.

the

drawing

The

area.

drawing of the step pulley

1 .00 hole is shown on dimensions. Use 30° as the receding

location of the

Add

axis.

2.50

+

—

'

Make a cabinet oblique drawing of the connector to the scale 1:1. Add dimensions. The 020 hole is located on the drawing area.

Use 30°

as the receding axis.

R20

+

COMMON FEATURES

IN

OBLIQUE-

STEP PULLEY AND CONNECTOR

REFERENCE UNIT

15-5

—

DRAWING

NAME. COURSE.

N-9

at the back of this below and draw a one-point perspective

Place a sheet of tracing paper located text over the grid

of the vise base shown to the scale

1:1.

Add

625-IIUNC-2B

.50 IN.

ONE-POINT PERSPECTIVEVISE BASE

REFERENCE UNIT

GRID

dimensions.

1.

2.

On On

the grids to the right of Figs.

1

the grid to the right of Fig. 3,

make

and

2.

sketch two different acceptable form variations for each part.

a tolerance block diagram

showing the deviations and

Add

limits of size.

dimensions.

Given the following information, add the feature control frame to the parts

Part

1.

Part

2.

Part

3.

shown below.

Surface Surface

A

to

M

to

Surface

N

to

Surface

R

to

have a straightness tolerance of .004 in. have a straightness tolerance of .006 in. have a straightness tolerance of .008 in. be straight within .006 in. for direction

A and straight within

.002

in.

for direction B.

Part

4.

With straightness specified as shown, what is the maximum permissible deviation from straightness of the line elements

Part

5.

Eliminate the top view and place the feature control frames on the front and side views.

if

the radius

is (a)

.496

in.,

Pi-:-

(b) .501 in., (c) .504 in.?

PART

,.755 .745

..505

.495

PART 2

PART 3

.

1.

Add

a flatness tolerance of 0.03 to the base of the flange in Part 1

3.

shown 2.

Add

the following tolerances to surface

in Part 2: (a)

Maximum

B

in. area.

is

of the base shown

in.

flatness tolerance of .010 in. for

fit

into Part

4 so there

will be

no

inter-

maximum clearance will never exceed .005 maximum limits of size to Part 4. Flatness

Add

the

tolerances of .001

each 4.

in.

are to be

added

to the

two surfaces of

part.

Show

and limits of and 6 on the graph provided.

the tolerance zones

Parts 5

PARTI

required to

ference and the

entire surface, (b) limited area flatness tolerance of .005 for

any 2.00 x 2.00

Part 3

size

dimensions for

1.

Complete

2.

If the

3.

Refer to Fig. 4 and complete the chart showing the

the charts in Figs.

maximum

straightness

and 2 showing the largest permissible straightness error for the feature sizes shown. 1 was not added to the part in Fig. 3, indicate which parts would be acceptable or unacceptable.

maximum

deviation permitted from straightness for the shaft sizes indicated.

5ifi

Add

the following geometric tolerances to the stand

is 1:1

(decimal inch). The hole

D

is

0.406 LC3

should be datums A, B, and D, respectively.

(a)

Surfaces A, B,

(b)

The back should be perpendicular and

(c)

flat

shown. The scale

fit.

to the

bottom within

.01

within .006.

The top should be

parallel to the bottom within .005. should have an angularity tolerance of .008 with the bottom. Surface D should be the secondary datum for this requirement.

(d) Surface

C

The bottom should be flat within .002. The sides of the slot should be parallel to each other within One side of the slot should be datum E. (g) The slot should be perpendicular to the back within .002. (e)

(f)

.001.

Determine the size of the gaging element to evaluate datum A, given the drawing callout and the measured size of the related datum features shown.

EXAMPLE 1 MEASUREDSIZE OF DATUM FEATURE A

GAGE

®.496

SIZE =

EXAMPLE 2 MEASUREDSIZE OF DATUM FEATURE A

GAGE

EXAMPLE 7 MEASURED SIZE OF DATUM FEATURE A = GAGE SIZE =

= .499

EXAMPLE 8 MEASUREDSIZE OF DATUM FEATURE A

= .496

GAGE

SIZE =

EXAMPLE 3 MEASUREDSIZE OF DATUM FEATURE A

GAGE

®

(7.

'-250. 1.244

O.004 (m)

SIZE =

EXAMPLE 9 MEASUREDSIZE OF DATUM FEATURE A

GAGE

SIZE =

SIZE =

EXAMPLE 4 MEASURED SIZE OF DATUM FEATURE A GAGE SIZE =

EXAMPLE 10 MEASUREDSIZE OF DATUM FEATURE A

®.870 = 1.245

GAGE

O0.05

EXAMPLE 5 MEASUREDSIZE OF DATUM FEATURE A

GAGE

GAGE

DATUM FEATURES SUBJECT TO SIZE VARIATION

(m)

O0.20MAX

GAGE ©34.4 = 24.£

SIZE =

REFERENCE UNIT

^

= .872

SIZE =

EXAMPLE 11 MEASUREDSIZE OF DATUM FEATURE A

= 25

SIZE =

EXAMPLE 6 MEASUREDSIZE OF DATUM FEATURE A

_25.0 ®24.8-

.398

EXAMPLE 12 MEASUREDSIZE OF DATUM FEATURE A

GAGE

= 34.52

SIZE =

SIZE =

= 34.94

Add

the following geometric tolerances to the spacer shown.

The

scale

is 1:1

(a)

(decimal inch).

All datums and tolerances to be on an unless otherwise specified.

(b) Surfaces

marked A, B, and

C

are

MMC

basis

Surface

A

is

datums A, B, and C,

perpendicular within .01 to datums

B and

(e)

The

D

is

parallel within .004 of

slot is parallel within .002 to

Surface

perpendicular within .001 to datum A.

ORIENTATION TOLERANCING FOR FEATURES OF SIZE

E

has an angularity tolerance of .010 with

A

should be

flat

square surface with a

datum C and

REFERENCE UNIT

fit (show the size of the perpendicular within .002 to

datum C. (h) Surface

datum B.

is

datum A. (g)

C, in that order. (d) Surface

The 01 .750 hole has an RC7 hole as limits) and

respectively. (c)

(f)

.005.

within .002 for any one-inch

maximum

flatness tolerance of

c

Add

the following geometric tolerances shown. The scale is 1:1 (decimal inch). dimensions and hole sizes.

to the

Add

cover plate

true position

MMC

datums and tolerances should be on an basis unless otherwise specified. (b) Surfaces and features marked A, B, and C are datums A, B, and C, respectively. (a) All

(c)

(d)

(e)

The four holes have

to

a +.006 and a -.000 tolerance on their and must not vary from true position by more than .002 any direction when the holes are at and are related datums A, D, and B, in that order.

(f)

MMC

U^

PROJECTED TOLERANCE ZONECOVER PLATE

UNIT

is

required for the underside

The 02.000 hole

is

datum

D

and has a +.006 and a -.000

has a positional tolerance of .008 and is referenced to datums A, B, and C, in that order. A projected tolerance zone of .60 is required for the four its size.

It

holes, the projection being directed

I

REFERENCE

tolerance of .010

tolerance on

size in

A flatness

of the cover plate.

^J

away from

the top of the

^

u

1.

Add

circularity tolerances to the diameters

shown in Part 1. circularity tolerances should be one-fifth of the size tolerance for each diameter.

3.

The

2.

Apply

cylindricity tolerances to the three cylindrical features

shown on

Part 4.

The

cylindricity tolerance should be 25

percent of the size tolerance.

Add cylindricity tolerances to Parts 2 and 3. The size of the cylindricity tolerance should equal one-quarter the size tolerance for each diameter.

012

I

-0.25

025±O.5

PARTI

019 -0.15

50±.02 -.56±.04

PART

2

PART

1~~

3

+.000

^0-^«°-.ooi

PART 4

.258

0.625 ±.002

CIRCULARITY AND ROUNDNESS

'.250

REFERENCE UNIT

16-12

+.002

0.750

-.010

DRAWING

NAME. COURSE.

P-12

i

On

the drawing below, redimension the slide.

Add

the

following geometric tolerances: (a)

All datums and tolerances should be on an

otherwise specified. (b) Surfaces A, B, and (c)

(d)

All

comers on

MMC basis unless

(e)The profile tolerance should be referenced to datums

A and B,

in that order,

C

are

datums A, B, and C,

the profile should have a

in that order.

maximum

0.

1

radius.

A profile-of-a-surface tolerance of 0.2 should be added all around the profile of the part, and the part cannot exceed the boundary of the dimensions shown.

PROFILE TOLERANCING— SLIDE

(f)

The hole should have

a positional tolerance of 0.12 and be referenced to datums A, B, and C, in that order.

REFERENCE UNIT

16-13

DRAWING

NAME. COURSE.

DATE

P-13

I

-2X

On the drawing below, redimension the adjustable base. Add the following geometeric tolerancing requirements:

10*°-2

OI__l 16

"'?•''

T8

(a) All

datums and tolerances should be on an

MMC

basis unless otherwise specified.

by letters A, B, and C are datums A, B, and C, respectively. (c) Surface A should be flat within 0. 15. (d) A profile-of-a-surface tolerance of 0.2 should be applied to the three coplanar surfaces on the left side of the part, with the lower of the three surfaces designated as datum D. (e) A profile-of-a-surface tolerance of 0.4 should be applied to the bottom four coplanar surfaces, with the surface on the left designated as datum E. (f) The 10 portion of the counterbored holes is datum N and should have a positional tolerance of 0.12 related to datums A, B, and C, in that order. (g) A coaxial relationship between the 010 and 016 portions of the counterbored holes is controlled by applying a positional tolerance of zero to the counterbored diameter. (b) Surfaces indicated

I

-r-

1--

CORRELATIVE TOLERANCESADJUSTABLE BASE

REFERENCE UNIT

On

the

drawing below, redimension the locating block.

Add

the

following geometric tolerances: (a) All

MMC basis unless

datums and tolerances should be on an

otherwise specified.

The primary datum is surface A (datum A). The secondary datum is the 012 hole (datum B). (d) The tertiary datum is the keyway width (datum C). (e) The two slots should be located by a positional tolerance of 0.4. They are located on the horizontal center line of the 012 (b) (c)

hole and referenced to datums A. B. and C. (f)

The axes of the two small holes have

a positional tolerance of

0.25 and are referenced to datums A. B. and C. (g) Datum A has a flatness tolerance of 0.2. (h) The 012 hole has a positional tolerance of 0.08 and

datum A. The keyway is to be symmetrically located on by a zero positional tolerance.

is

referenced

to

(i)

POSITIONAL TOLERANCING— NONCYLINDRICAL FEATURES

REFERENCE UNIT

the

012

hole

On

the drawing below, redimension the locating plate.

Add

(a)

datums and tolerances should be on an basis unless otherwise specified. Surfaces marked A, B, and C are the primary, secondary, and tertiary datums, respectively. Composite positional tolerancing is required All

MMC

the following geometric tolerances: (b)

(c)

for the three patterns of holes

and

is

referenced to datums A, B, and C. (d)

3X

The

positional tolerances for the location

of hole patterns are .010, .008, and .016 for the 0.250, 0.188, and 0.125 holes,

© 250*g^

respectively. (e)

The

positional tolerances for holes within

the pattern are .004, .003, and .006 for the

(f)

0.250, 0.188, and 0.125 holes, respectively. A flatness tolerance of .004 is required for

(g)

datum B. The top surface should be

parallel within

.008 with the bottom surface. (h)

The

right

side

surface

should be

perpendicular within .005 with the bottom surface. (i)

Surface

D

should have a perpendicularity

tolerance of .008 with the bottom surface. (j)

Datum

A

should be

flat

within .005.

1.

2.

Refer to Fig. 1 and add the size of the positional tolerance required for the cover and flange to the feature control frames.

Complete the feature control frames

in Fig. 2 and assume that the positional tolerance for the holes in the tlange in assignment 1

is

to

3.

Complete the feature control frames

in Fig. 3.

The

positional

tolerances for the flange and cover should be equal. 4.

Apply equal

positional tolerances to the coaxial features in Fig. 4.

be twice the size as the positional tolerance of the holes

in the cover.

lOX 0.439 ±.004

® DRAWING CALLOUT FOR COVER AND FLANGE

ENLARGED DETAIL AT SECTION B-B FIGURE

I

lOX 0.439 + .004

^

lOX 0.439 ±.004

®

®

COVER

FLANGE

FIGURE

2

CAP SCREW (MAX DIA = .375) .375

lOX 0.439 ±.004

® DRAWING CALLOUT FOR COVER AND FLANGE

ENLARGED DETAIL AT SECTION B-B

FIGURES

.016 0.044

-^

024 +0.058

M a(m)

I— 015.950 _^.044

^

(m)

^^

^^

r^

^^zzzzz 023.918

SHAFT HOUSING

SHAFT

FIGURE 4

FORMULAS FOR POSITIONAL TOLERANCING

REFERENCE UNIT

0^

B®

On

one of the blank sheets from the back of this book, make a two- view working drawing of the housing shown below. The scale is 1:2.

(a)

Add

the following geometric tolerancing requirements.

All datums and tolerances should be on an

MMC basis unless

otherwise specified.

(f)

(b)

The bearing housing surface attached by .375 cap screws to the main housing is datum A and has a flatness tolerance

(c)

The bearing seat is datum .004 with datum A.

of .003.

(d)

An LN3

(e)

(g)

fit is

D

and has a

parallel tolerance of

required between the housing and the bearing.

datum E and has a perpendicularity tolerance of .001 with datum D. It also has a positional tolerance of .002 referenced to datums A and C, in that order. This diameter

is

(h)

The surface contacting the cover plate is datum F. The holes for the spring pins are 0.375-.376 and are designated as datum C. They are located by a positional tolerance of .001 and referenced to datum A. The holes for the .375 cap screws are 0.390^02. They are located by a positional tolerance of .008 and referenced to datums A and C, in that order. The four tapped holes have a positional tolerance of .010 and are referenced to datums D and E, in that order.

03.60

SUMMARY OF RULES GEOMETRIC TOLERANCING— HOUSING

REFERENCE UNIT

On

the charts below, insert the

coordinates for the ten holes.

The

the holes indicate the sequence in

should be drilled. The origin drawing.

is

X

letters

and

Y

beside

which they

shown on

the

.

•4X .250-20UNC-2B T.50

EQLSP ON

The

top-drill holes and the six through holes should be made on a numerical-controlled machine. The depth of the tap drill should be 10 in. below the last complete thread. In

1.500

.

the chart below,

04.00

list

the

X and Y coordinates

for each hole using point-to-point coordinates.

The

letters at the

which they

holes

show

the sequence in

are to be drilled. Calculating the

Z

coordinate should be done in the same manner as for the part shown in Fig. 17-2^. The origin for the X and Y coordinates is the center of the end plate and are located below.

Draw

the

two views

to the scale of

6X 0.250 1—10.500 T

.12

EQL SP ON 03.000

NOTES:

ROUNDS AND FILLETS NO HOLE (I) SHOWN

R. 12

I

POINT-TO-POINT COORDINATES

1

:

1

Redesign the pivot arm shown for fabrication by welding using standard metal sizes and shapes. a detail assembly drawing. Welding symbols and sizes are not required. Complete the item list and identify each part on the assembly. The scale is 1:1.

Make

QTY

ITEM

MATL

PTNO.

DESCRIPTION

3X .38-16

UNC-2B

01.50-

0.760-

DESIGNING FOR WELDINGPIVOT

ARM

REFERENCE UNIT 18-1

NAME. COURSE.

DRAWING

S-1

1

.

Complete

the enlarged views of the

Use notes

to explain

Add

welded joints in the drawing callouts shown. any additional welding requirements.

the information at the right to the seven

welding symbols below.

Weld

Make a two-view working drawing, complete with dimensions and welding symbols, of the swing bracket shown. Complete the item list and identify each part on the assembly. Use fullUse a common break to shorten the height. The two 0.625 holes on the side view are located on drawing area below. The scale is 1:1.

strength welds.

centers of the the

QTY

On a blank

link

make

the assembly.

sheet of drawing paper from the back of this workbook, two-view welded fabrication drawing of the connecting

a

shown. Complete the item

Use

list

below and

full-strength welds.

The

1.005 1.003

.38

1.38

4, 02.00

> 01.250

1.50

3.00-

QTY

identify each part

scale

is 1:2.

on

Show on the

the draw ing callouts partial

and sketch the weld

details

views below.

LINE OF

f_WELD

u SECTION THROUGH

WELD

ASSEMBLY - PLUG WELDS I

'h

4J SECTION THROUGH

WELD

ASSEMBLY

2

- SLOT WELDS

h

u SECTION THROUGH

WELD

ASSEMBLY ASSEMBLY 1— PLUG WELDS

3

- SPOT WELDS

SLOT DETAIL

Your drafting supervisor has assigned you the responsibility of designing an attractive single toggle-switch plate for use in kitchens and bathrooms. The toggle plate and clearance hole requirements are shown. The production run will exceed 25,000, and four different color plates are required.

Lay out

the design of the plate and include

on the drawing the production and specification data submit with your design.

that

you would

.32

Two

vertical .312 in. diameter electrical conductors should be supported on the inside wall of an oil-filled metal tank. The vertical length of the conductors is 7 ft. The conductors, made of copper,

have no insulation on them. The voltage they carry is such that there must be a minimum distance of 2.00 in. between conductors or any other metal when supported by nonconductive material, such

QTY

wood, etc. Although there are no external forces acting on these conductors, they should be supported every 24 in. Prepare an assembly drawing showing the conductors, support, and tank wall. Include an item list. On a second sheet, prepare the details as plastic,

of the parts required. Scale to

suit.

Show your

calculations below each of the V-belt drive problems on this page.

A .33 hp (0.25 kW), 1750 r/min motor should operate a furnace blower having a shaft speed of approximately 765 r/min. The

C.

center distance between the motor and blower shafts is approximately 13.5 in. (340 mm). Select a suitable V-belt.

A

1.5 hp (1.1 kW), 1750 r/min motor should operate a band saw whose flywheel turns at approximately 800 r/min. A pulley attached to the flywheel shaft connects, by means of a V-belt, to the pulley on the motor shaft. The center-to-center distance of the shafts is 14.5 in. (368 mm). Calculate the size

of the V-belt required.

BELT DRIVES

A .5

hp (0.37 kW), 750 r/min motor drives a power hacksaw. shaft on the hacksaw should run at approximately 750 r/min, and the center-to-center distance of the shafts is 15.5 in. (400 mm). Calculate the size of the V-belt required. 1

The

D.

A

.75 hp (0.6 kW), 1750 r/min motor is used to drive a punch machine whose flywheel turns at approximately 600

A pulley is attached to the flywheel shaft and connects motor pulley by means of a V-belt. The center-to-center distance is 17 in. (430 mm). Calculate the size of the V-belt r/min. to the

required.

DRAWING

REFERENCE UNIT

NAME-

20-1

COURSE

U-1 DATE.

Show your

calculations below each of the chain drive problems on this page.

A

tumbler barrel is to be driven at approximately 40 r/min by a speed reducer powered by a 5 hp (3.7 kW) electric motor. The reducer output speed is 100 r/min, and the output shaft is 1.75

in.

barrel

(44

mm) in diameter. The shaft diameter of the tumbling

2 in. (50

is

approximately 36

in.

mm). The shaft center distance is (900 mm). Select a single chain (heavy

shock).

The head

shaft of an apron conveyor, which handles rough from a shakeout, operates at 66 r/min and is driven by a gear motor whose output is 7.5 hp (5.6 kW) at 100 r/min. The head shaft has a 2 in. (50 mm) diameter, and the gear motor shaft has a 1 .75 in. (44 mm) diameter. The shaft center distance should not exceed 42 in. (1055 mm). Select a multiple chain

castings

(moderate shock). I

METRIC

I I

METRIC

I

A gear-type lubrication pump located in the base of a large hydraulic press

is

to

be driven

at

860 r/min from a

1

.25 in.

mm) diameter shaft operating at 1000 r/min. The pump rated at 3 hp (2.4 kW) and has a 1.375 in. (35 mm)

(32 is

diameter than 10

shaft.

in.

The

shaft center distance

must not be

less

(250 mm).

CHAIN DRIVES

DRAWING

REFERENCE UNIT

20-2

NAME.

COURSE

U-2

Make

a working drawing of the spur gear given the following

information: tooth form

= 1.00

in.,

—

web— .40 in., CUTTING DATA

14.5°,

shaft

PD = 6.000 in., DP = 5,

= 01.10

in.,

face width

hub = 01.90 x 1.50

in.

LG,

MATL— MI.

Select a proper key size, and use your judgment

for dimensions not given.

scale

is 1:1.

Complete

the cutting data block.

The

Show your A.

calculations below each of the spur gear problems on this page.

A

A

pinion, a

pinion, a

1200 r/min motor drives, by means of a spur gear and machine rated at 8 hp and operating under moderate shock 12 hours a day. The reduction in r/min is 4: Select 1

a suitable pair of spur gears to transmit the

B.

power

.

press rated at 22 hp. 900 r/min, is to be driven by a 30 hp, 1200 r/min motor. The punch, which is subjected to moderate shock, will be in operation 16 hours a day. Select

power

POWER TRANSMITTING CAPACITY OF SPUR GEARS

.

suitable pair of spur gears to transmit the

required.

A punch

a suitable pair of spur gears to transmit the

1200 r/min motor drives, by means of a spur gear and machine rated at 7.5 kW and operating under moderate shock 8 hours a day. The reduction in r/min is 3: 1 Select a

required.

D.

20-4

required.

An 1800 r/min motor drives a machine rated at 2 kW. The machine runs at 450 r/min under moderate shock 18 hours a day. Select a suitable pair of spur gears to transmit the power required.

REFERENCE UNIT

power

DRAWING

NAME_

COURSE

U-4

^

it:

1

w

z o z

WORM CUTTING DATA

On one of the blank sheets from the back of this workbook, make a layout drawing showing a suitable mounting arrangement for

and bearing housing mounted on the mounting surface shown. The design is for low-speed moderate use. Draw the gear and one shaft support in full-section, and the pulley and the the gear

A partial top view is required mounting holes. Standard parts should be used wherever possible and an item list should be included on the drawing. The scale is 1 :2. other shaft support in half-section.

to

show

the location of the

Lay out

motor

gearbox shown.

A

flexible coupling

is

required to connect the shaft, and the type of coupling required

is

the

to the

shown. Lay out the drive assembly and size on the drawing. The scale is 1:4.

call for the correct

coupling

HUMID OR CORROSIVE HOUSING

I

r0M

TO

A

NO.

• - 0G

7MZ

mZZ^i

1/777}

Complete

the gearbox assembly below.

are supported

The

shafts for the gearbox

by two plain bearings press-fitted

into the gearbox.

Setscrew collars, as shown in the textbook's appendix, are mounted on the shafts to prevent lateral movement. From manufacturers'

GEARBOX

BEARINGSGEARBOX

REFERENCE UNIT

catalogs, select suitable 16

DP 20°

spur gears that revolve the smaller

shaft four times as fast as the larger shaft.

shafts using setscrews

and

flats

on the

Lock the gears to the The scale is 1:1.

shaft.

On

a blank sheet, complete this gearbox assembly drawing. The is 1:1. Gear 1 and the shaft are cast as a single unit. Gears

scale

and 7 are fastened to their respective shafts by keys and by retaining rings. Gears 4, 5, and 8 are formed as one part that slides along the lay-shaft meshing with gear 3, 6, or 7. Retaining rings located at each end of this sliding-gear 2, 3, 6,

are held in location

SHAFT

assembly locate it in the three positions, and a key locks the assembly to the shaft. Radial ball bearings are positioned at points A and B on each shaft. Each shaft will have one floating and one fixed outer-ring mounting. The gear end of the primary shaft must be designed to house bearing A of the main shaft. Refer to the manufacturers'catalogs or the appendix for standard parts.

.

Make

a one-view assembly drawing of the adjustable shaft support from the details shown. Show the bearing housing in its lowest position and a phantom outline of the bearing housing in its highest position. Show only those

dimensions that would be used for catalog purchases. The scale

is 1

:

PT

5

BEARINGS

MATL-BRONZE

1

2

REQD t0.02

PT8HEXHD JAM NUT MI0

3X

2REQD

V06

PRESS FIT PT 4

25 IN

X 90°

SPACED AT 90°

PT

BEARING HOUSING

4

MATL-STEEL

1

REQD

PT6 SETSCREW SLOTTED HEADLESS, CONE POINT M 10 X 30 LG 3 REQD RIO MIO 3

HOLES

20

SLIDE FIT FOR PT

2

PT3Y0KE MATL-GI

1

REQD

2X I4^^iy_5^^^ ^A 20

^Hl

^^

-

45°

CHAM

/ERTICAL SHAFT

MATL-STEEL

20 SLIDE FIT

REQD

1

FOR PT

2

40

ROUNDS AND FILLETS 8

R3

SLOTS

70

MATL-WI

PT

I

REQD

SETSCREW

7

SLOTTED HEADLESS HEADER POINT MIO X 2 REQD

15

LG

NOTE- DIAMETERS SHOWN FOR SLIDE AND PRESS FITS ARE NOMINAL DIMENSIONS

PREMOUNTED BEARINGS-

REFERENCE

ADJUSTABLE SHAFT SUPPORT

21-4

UNIT

DRAWING

NAME. COURSE.

DATE

V-4 .

.

<;

_«j

^

-S

^ O

C3

•T^

^

^oj -ow u

.t:

C 03

J3 *-•

«

u-

S

cd

c^

c^

«

c«

C,

•5

-^ «
.3 :|

o 5

«

;

u;

T3

>.

5

OB


03

O

w O

M

on eg

t'l

(U

^ -C

-o

o

CJ,

g

;«

eg

tfl

g

^ >^

^.

Pe-:2

CJ

=

!1 -«

-^ =: _;

oi 'S .— f-

8:5

C % D

13 i/^

— —

=

'^

t)

c3

'Si

^

"O o .2 "u -S T3 J= >,

£ O u.

c rt
o. t.

1>

1-*

E

•£

eg

O

c O -r-

t<-

lyj

(U

o U

X>

E^-

eg

.2

^ O

s
1 ori5 £ ^ J^^ o a^ x:

S o

"^ -^ eg c/3 XI 3

i^ -S •£

-O

3^ iii

lU

ra

'^

U

c £H5^ '«

(U

t^

LUBRICATING AND RADIAL SEALS

REFERENCE UNIT

21-5

DRAWING

NAME. COURSE.

DATE

V-5 .

» > o x>


;' M.H

I

^ 3M o

in

.tS

cx

u

c c
ex •a

E o

U c«

c«

S

S

ij

o

^

I—

IJ

1/2

O-

id"

-3

c

C U

•S

o

.5

c/^

^^6 r,

=^

—

(U

CI,

-o

C

5

(U

c

-c

O

.c op

J

1|i5
ST (U

^ g-o ex O "^ u vh rt

O

^1 c -r

.^2

3

c/2

U

xi

-^

§-""

C"*

o

STATIC SEALS

DRAWING

REFERENCE UNIT

21-6

NAME. COURSE.

V-6

o

.

In the space provided,

draw

the displacement

diagram for a plate cam that will activate a 0.50 in. roller 180° with harmonic motion, dwell 30°, drop 1.50 in. in 120° with

follower as follows: rise 1.50 in. in modified uniform motion, dwell for the remainder. Draw the front view of this cam given the following additional information: prime circle shaft = 01.OOin., hub = 01.75 in., keyway to suit. The scale is 1

:

ANGULAR DISPLACEMENT

= 03.00

in.,

1

When the cam drawing is finished, complete the chart showing the radial displacements for the angular displacements shown. The radial measurements are taken from the prime circle.

(DEGREES)

In the space provided, activate a

0.50

draw the displacement diagram

in. roller

for a face

as follows: rise 1.20 in. in 150° with

cam

that will

harmonic motion,

dwell 30°, drop 1.20 in. in 120° with parabolic motion, dwell for the remainder. Draw the front and side views of the cam given the following additional information: prime circle = 03.00 in., outside diameter of cam = 6.50 in., cam thickness = 1 .00 in.,

groove depth = .38

suit.

The

When

scale the

in.,

shaft

= 01.00

in.,

hub = 01.75 x 1.50

in.,

keyseat to

is 1:2.

cam drawing

is

finished,

complete the chart on the right showing the shown. The radial displacements

radial displacements for the angular displacements

are taken

from the prime

circle.

0°

DISPLACEMENT DIAGRAM

(DEGREES)

ANGULAR DISPLACEMENT

Draw

the top and front \iews of a drum cam gi\en the following information: 2.00 in. in 120° with parabolic motion, dwell for 60°. drop 2.00 in. 150° with modified sine motion, dwell for remainder. Roller follower

rise in

= 0.70 in., cam = 04.00 in. x 4.80 in. long, follower groove = .50 in. deep. The scale is 1:2. Use your judgment for dimensions not given.

Show

development of the cam. which will ser\e as a displacement the cam drawing is finished, complete the chart showing the radial displacements taken from the base line. the full

diagram.

HOLE

TIMING

ANGULAR DISPLACEMENT

FROM

When

DIMENSIONS

In the locations below, lay out the

shown and

A, B, C, and D. The scale the

two linkages

plot the paths at 15° intervals of points

two 02.75

is 1:2.

are indicated

The

centers of

on the drawing

area.

2.75

2.75

FIXED SWIVEL-ROD

FREETO SLIDE THROUGH-

6.00

MIDPOINT

(A)

SIMPLE CRANK

LINKAGESSIMPLE CRANK MECHANISMS

(B)

REFERENCE UNIT

CRANK WITH SLIDING ROD

-

In the space below, lay out a one-view drawing of the ratchet design shown. Two pawls are used, a drive pawl as shown and a holding pawl held in position by a spring. Using crank rotation positions every 22.5°, plot the path of the end of the drive pawl. Use your judgment for dimensions not shown. The scale is 1:2. The center of the ratchet is located on the drawing area.

DRIVE PAWL

R 25

0100

HOLDING PAWL (DROPS

IN

AND LOCKS

RATCHET JUST BEFORE DRIVE PAWL) SPRING

RATCHET WHEELSRATCHET AND CRANK MECHANISM

REFERENCE UNIT

In the space below,

make

a development drawing, complete with bending instructions

2X 03

and dimensions, of the wall tray. The scale is 1:2. The bottom of the wall tray development is located on the drawing area. Allow 6 mm for safe edges and seams.

SURFACE DEVELOPMENTSWALL TRAY

REFERENCE UNIT 23-1

DRAWING

NAME. COURSE.

DATE

X-1

Make a development drawing of the hexagon box shown. The scale is After the development drawing has been checked by your instructor, add suitable seams and joint allowances. Then cut out the development, score on the bend lines, and form and glue the box together. The bottom of the box is located on the drawing area and is hinged at D-E. The top is hinged at D-E. The seam is at A. All seams are .25 in. wide and placed on the inside. 1

THE PACKAGING INDUSTRY-

REFERENCE

HEXAGON BOX

23-2

UNIT

:

1

.

DRAWING

NAME. COURSE.

DATE

X-2

Make

a development drawing of the truncated concentric pyramid shown.

The scale is 1 Add suitable seams. The bottom of the pyramid is located on the drawing area and is hinged at 1-2. The top is hinged at A-B. :

1

.

3.4

RADIAL LINE DEVELOPMENTTRUNCATED CONCENTRIC PYRAMID

REFERENCE UNIT

23-3

DRAWING

NAME. COURSE.

X-3

Make The

a development drawing of the three-piece

scale

is 1:1.

Add

suitable seams.

elbow in the space below. Use construction lines every 30° on the

circumference to develop the elbow.

PARALLEL LINE DEVELOPMENTTHREE-PIECE

ELBOW

REFERENCE UNIT

23-4

DRAWING

NAME. COURSE,

DATE

X-4

Make development drawings for Add suitable seams. The scale is

the 1

:

1

.

two parts of the funnel shown. The apexes of the two cones are

located on the drawing surface.

+

+

RADIAL LINE DEVELOPMENTCONICAL SURFACES

REFERENCE UNIT

Make

development drawing of the shown. Add suitable seams. The scale is 1:1. Points B and a

transition piece

C

for flat surface

the drawing area.

B-C-2

are located

Use development

every 30° on the diameter.

on

lines

B

In the space below, make a half development of a 03.00 in. sphere using the gore method. Show six of twelve sections. The scale is 1:1.

DEVELOPMENT OF A SPHEREGORE METHOD

REFERENCE UNIT

/ \

/^

4

5

^

\ 3

V

Complete the

lines of intersection

on

all

views.

The

cylinders pass through the vertical prisms.

2

Show

^

the letter

and numbers on

REFERENCE

INTERSECTIONS OF CYLINDRICAL SURFACES

UNIT

23-9

all

views.

DRAWING

NAME. COURSE.

X-9 DATE

\0

/

-•4^'

Complete and

\

\

V

the lines of intersection

triansle.

The seams

on the partially completed views, and make a development drawing of the conical prisms, rectangle. 0-1 and A. Do not show seam allowances.

are at lines

INTERSECTIONS OF PRISMS

REFERENCE UNIT

On one

of the blank sheets from the back of this book, make a threeview drawing of the fuel oil supply system. Include with the drawing

an item

=

list

calling for all the pipe fittings

and valves. The scale

is -|-

Scale the pictorial drawing to obtain center-to-center distances and lengths of pipe. in.

1

ft.

ALL PIPE AND FITTINGS 2.00 IN. PIPE SIZE EXCEPT WHERE NOTED IN

OIL

ASSIGNMENT

RETURN FROM BOILERS

OIL SUPPLY TO

OIL

RETURN TO TANK

OIL SUCTION

STORAGE TANK

IN

IN

BURNERS

FLOOR

FROM TANK

FLOOR

TEMPERATURE-SENSING ELEMENT TEMPERATURE GAGE

PRESSURE GAGE

STRAINER (LATERAL)

ELECTRIC OIL

HEATER

FUEL OIL PUMPS

ORTHOGRAPHIC PIPING DRAWINGS-

REFERENCE

FUEL OIL SUPPLY SYSTEM

24-1

UNIT

DRAWING

NAME. COURSE.

Y-1

DRAWING

REFERENCE UNIT

NAME. COURSE.

DATE

For starting diesel engines, the most dependable and widely used method is an air system of the type illustrated here. With this starting system hooked up to diesel installations generating power and heat for buildings such as factories, hotels, large apartment houses, and stores, interruptions through failure of electric supply

All valves connected to horizontal pipelines 6 ft (1800 mm) or higher above the floor will have their spindles located on the underside for ease of operation. Other horizontally positioned valves will have their spindles in the upright position. All valves connected to vertical pipes will have their valve

or storage cells are avoided.

spindles oriented to the front of the drawing.

Safety valves are provided for the compressor and the air storage tanks. Check valves are installed on the air storage tank feed lines and the compressor discharge lines to prevent accidental

Flanges are to be located on the top pipeline near the three and near the air compressor for assembly and disassembly purposes. Flanges are located on the starting diesel

discharge of the tanks.

engines.

Piping

is

tanks and/or

arranged so that the compressor will

pump

directly to the engines.

Any

fill

the storage

of the three storage

tanks can be used for starting, and pressure gages indicate their The engines are fitted with quick-opening valves to admit air speedily at full pressure and shut it off the instant rotation is readiness.

obtained.

A

bronze globe valve

complete and for regulation of the air flow. Drains are provided at low points to remove condensate from the air storage tanks, lines, and engine feeds. Globe valves are recommended throughout this hookup except on the main shutoff lines, where gate valves are used because of

shutdown of the engine

is

installed to permit

for repairs

infrequent operation.

SCALE

4

3

2

1

FEET 3

AIR

COMPRESSOR

STARTING AIR TANKS

starting air tanks

On one of the blank sheets from the back of this book, make an isometric piping drawing of the diesel-engine starting system. The scale is .50 in. = 1 ft. Use the scale shown on this sheet to measure the center distance and lengths of pipe. On your drawing, include an item list calling for the pipe fittings and valves. All the throughout.

CODE

fitfings are threaded,

and 1.50

in.

pipe

is

used

DRAWING

REFERENCE UNIT

NAME. COURSE.

DATE

The

one-story, taxpayer-type building shown here has been developed and steadily improved as a result of the movement of shopping centers to suburban areas. This type of building,

pipe fittings and valves. Pipe hangers are required for ever\'

which is multiplying rapidly, is constructed either with or without a basement. It houses retail stores, service establishments, amusement centers, restaurants, and offices. Heating and plumbing services in such buildings are usually provided by the owner or operator, and for this reason, he or she might give careful consideration to low-

of pipe runs not in the direction of the coordinate axes, and

An oil- or gas-fired steam and a separate gas-fired heater for the hot-water supply will generally meet these

8

ft

of piping. Direction of flow, level indicators for

horizontal piping using the basement floor as zero, indication

to

scale

requirements.

The two-pipe heating system, located in the installation illustrated,

in the

basement

has unit heaters with individual

thermostatic controls. Valuable extra floor space available for tenants' use because the heaters are

is

made

hung from

the ceiling. Because the heaters in each store or each section of a store are controlled automatically, fuel savings are effected and even heating is ensured.

On

one of the blank sheets from the back of this book, isometric drawing of the piping layout shown. With the drawing, include an item list calling for all the

make an

SCALE

is

^

in.

measure the

1.50

in.

cost and trouble-free installations. boiler with automatic control

shown on the drawing. shown on this sheet center distances and lengths of pipe. Use

a drainage slope of

The

CODE

pipe.

=

1

1

:20 are to be

ft.

Use

the scale

REFERENCE UNIT

DRAWING

NAME. COURSE.

DATE

Calculate the limits, tolerances, and sizes of the

and

structural steel

handbooks

W SHAPES

WI8x60

60'-8"

DIM

beams shown. Refer

(C)

to Fig.

for the sizes of structural steel shapes.

UsU

(A)

25-1-8

DRAWING

REFERENCE UNIT

NAME. COURSE.

DATE

Make

detail drawings of the two connections shown. Refer to 25-1-8 and structural steel manuals. The connection angles welded to the beam web, and the outstanding angles are bolted

to the connecting beam. The bolts and holes need not be shown on these drawings. The scale is 1:8 (U.S. customary). The locations of the W24 X 76 and W24 x 94 are shown on the drawing area.

Fig.

are

tW24X76

WI6x78

WI6 X 78

ELEVATION: ALL STEEL FLUSH, TOP AT ELEV. + 33-6

CONNECTIONS:

TWO ANGLES 4x3x4-x8 0N

DETAIL OF CONNECTION (SCALE 1:8)

BOTH SIDES OF WI6 BEAMS PARTIAL DESIGN DRAWING


^

+51'

i-5l'-2

-2

S^ SI8 X 70

SI2 X 50

t>

CONNECTIONS:

TWO ANGLES 4 x 3 x -f x 6 ON SI2 x 50 TWO ANGLES 4 x 3 x 4- x 10 ON SIS x 70

PARTIAL DESIGN

DETAIL OF CONNECTION (SCALE 1:8)

DRAWING

STRUCTURAL DRAFTINGBEAMS

REFERENCE UNIT

REFERENCE UNIT

DRAWING

NAME. COURSE.

DATE.

Sketch the following beam connections from the design sketch shown:

North end connection of beam E3 South end connection of beam K3 The scale is 1:8. The locations of the Wl 8 X 96 beams are shown on the drawing area. (a)

(b)

g

DRAWING

REFERENCE UNIT

NAME. COURSE.

W

Prepare one drawing for the two horizontal 1 6 x 40 beams shown on the design sketch. Eliminate the top and bottom views. The scale is = 1 ft. 1-f in. The 16 X 40 beam is located on the drawing area.

W

n^

.

.

BOTT FLG

BSl-

-0

81 HOLES Ga 2.12 BOTT FUG OF CIS x 40

NOTES

TOP OF ALL MEMBERS AT ELEVATION 70'-3 EXCEPT WHERE NOTED SHOP CONNECTIONS WELDED •FIELD CONNECTIONS 75-A325 FRICTION TYPE BOLTS • •

• USE

STRUCTURAL DRAFTINGSECTIONING

DOUBLE-ANGLE BEAM CONNECTIONS

REFERENCE UNIT

25-4

DRAWING

NAME. COURSE.

DATE

AA-4

DRAWING

REFERENCE UNIT

NAME.

COURSE

DATE.

Complete the

details of the seated

both ends of the

W18 x 60 beam.

beam connections

The

scale

is

1

at

:8.

16k

/

-t-

L BEAM "A"

TOP OF BEAM AT ELEV. +27 -3 0.75 A325

FRICTION BOLTS ?.

BEAMWI4X74

WIS X 60

SCALE DETAIL OF

1:8

WEST END OF WIS X

60

BEAM CONNECTION

WIS X 60

SCALE DETAIL OF EAST

STRUCTURAL DRAFTINGSEATED BEAM CONNECTIONS

l:S

END OF WIS X

60

BEAM CONNECTION

REFERENCE UNIT

-WI2

X

50

WI8x

16k

60

r

REFERENCE UNIT

DRAWING

NAME. COURSE.

DATE

On one of the blank sheets from the back of this book, make detail drawings of beams D3, G3, K3, MB, C3, and F3 shown on the layout. Note: Only two beam drawings are required. The scale

is

1

:8.

DRAWING

REFERENCE UNIT

NAME. COURSE.

DATE

Design a simple plate jig for drilling the holes in the spacer shown. scale is 1:1. State the sequence of operations and the time at which locking pins may be required.

The

4X

6.2

MATL- BRASS 20THK

JIGS

AND FIXTURESJIG

DESIGN

REFERENCE UNIT 26-1

DRAWING

NAME. COURSE.

BB-1 DATE.

DRAWING

REFERENCE UNIT

NAMECOURSE.

DATE

Design a jig for bracket.

The

shown on the flanged and the finished base should be the

drilling the six small holes

large center hole

6X 08 EQLSPON 068

A lockpin is recommended

features used for locating the part in the jig.

for alignment after the first hole

is drilled. Standard components should be used wherever possible. The scale is 1:1.

MATL - MALLEABLE IRON

JIGS

AND FIXTURES-

DRILL JIG

COMPONENTS

DRAWING

REFERENCE UNIT

26-2

NAME. COURSE.

DATE.

BB-2

DRAWING

REFERENCE UNIT

NAME. COURSE.

DATE.

Design a simple plate jig for drilling the holes in the spacer shown. size of the dowel pins in the design is 06.006 ± 0.003. After your overall design has been approved by your instructor, dimension the jig plate according to the procedures outlined in this unit. The

The

scale

is 1:2.

TOLERANCE ON DIMENSIONS ±0.1

JIGS

AND FIXTURES-

DIMENSIONING

JIG

DRAWINGS

REFERENCE UNIT

UNLESS OTHERWISE SPECIFIED

DRAWING

REFERENCE UNIT

NAME. COURSE.

DATE

Design a simple milling fixture to mill out the two outside portions of the top of the drive link shown. Use standard components and refer to manufacturers' catalogs wherever possible.

The

scale

is 1:2.

The workpiece

is

partially

drawn.

^

DRAWING

REFERENCE UNIT

NAME.

COURSE

DATE

1

On

a blank sheet of

drawing paper from the back of this workbook, make a schematic diagram of the sound-effects generator layout shown. For electrical symbols not shown in Table 49 of the appendix, use the symbols shown on the layout.

©

,.

PART I

2

3

4 5

6 7

8

9 10 1

SCHEMATIC DIAGRAMS— SOUND-EFFECTS GENERATOR

PART

I-Mr2 potentiometer

12

O.I-nF

Amplifier 4069 IC Amplifier 4069 IC l-|aF capacitor 0.47-|iF capacitor O.I-|iF capacitor 0.05-nF capacitor 500-nF capacitor lOO-^F capacitor

13

100 OOO-fi

14

amplifier

15

O.I-fiF

20

TL507C

21

100

IC (integrated circuit)

OOO-Q potentiometer

REFERENCE UNIT

Mylar capacitor potentiometer

LM386

IC4

16

Mylar capacitor 0.047-|iF Mylar capacitor

17

lO-Q resistor

18

lOOO-ii resistor

19

©

Light-emitting diode 250-nF capacitor 8-n speaker

Ground

REFERENCE UNIT

DRAWING

NAME. COURSE.

DATE.

On

a blank sheet of drawing paper from the back of this workbook, make a highway-type connection diagram of the boat's electrical system shown here.

BOW LIGHT

GRAY/REO-

HORN L^BLACK 1

•-ORANGE/WHITE-1

1

^ ^

INSTRUMENT PANEL NAVIGATIONAL

AND ANCHOR

(REAR VIEW) -GRAY/RED

LIGHT SWITCH

SPEEDOMETER ORANGE/

COURTESY

COURTESY

LIGHT

LIGHT

Lblue—

I

Rl

ArK

u

:«;

_l

<

r 1

I

Rl ATk-

1

FUEL FILL DECK PLATE

.

(TOP VIEW)

!^

FUSE

HOLDER

(REAR VIEW)

X

i

BATTERY

FUEL TANK

STERN LIGHT

WIRING DIAGRAMS-

REFERENCE

WIRING DIAGRAM FOR BOAT

27-3

UNIT

DRAWING

NAME. COURSE.

DATE

CC-2 .

DRAWING

REFERENCE UNIT

NAME. COURSE.

DATE.

The schematic diagram for the board below is shown on

circuit

the

bottom view

partially

the right.

completed Complete

(circuit side).

(A)

SCHEMATIC DIAGRAM

cm

^7-

\ ,>--

X

^

-0_

.

fti

\jy

DC

OUT

TOP VIEW (COMPONENT

0{i^Z}e

©

^

SIDE)

a I

^ ,

'^,

BOTTOM VIEW (CIRCUIT SIDE)

PRINTED CIRCUITSBOARD

I

I

^

'G \\C2\

CIRCUIT

(J)

^

REFERENCE UNIT

I

REFERENCE UNIT

NAME. COURSE.

DATE

On a blank sheet of drawing paper from the back of this workbook, prepare a logic diagram from the information shown. Convert to distinctive listed

shaped logic symbols and add the missing connections

below.

CONNECTIONS TO BE MADE ICITERM.9T0 IC3, TERM. 12 IC3 TERM. TO IC4 TERM. 4 AND ICII TERM. 12 IC4TERM. 5 TO IC8TERM.6 IC5 TERM. 10 TO IC7 TERM. ICIO TERM. 10, AND IC6TERM. IT0IC7TERM. 2 IC9TERM. 12 TO ICIO TERM. ICII TERM. TO ICI3TERM. 10 ICI2 TERM. 8 TO ICI3 TERM. 9 :

II

I.

II

II

GROUND TERM. GROUND TERM.

7

8

ON ON

ICI, IC3,

ICI

IC9,

AND

ICI3

ICI2

TERM. 9

LOGIC

SYMBOL

DRAWING

REFERENCE UNIT

NAME. COURSE.

DATE

REFERENCE UNIT

DRAWING

NAME. COURSE.

DATE

33H3fl3=13fl

OmWAflQ I.

.

3

MAH

^3 n U O 3

TIl/IU

"^WwTNV

REFERENCE UNIT

DRAWING

NAME. COURSE.

DATE

OHIWAHQ

.BMAkl

3TAa

.38HU03

33H3R3^3fl TIHU

REFERENCE UNIT

DRAWING

NAME. COURSE.

DATE

OWIWAflQ

.3MAH

J\V\U •

'*TAa

a8HU0D

5

30M3R3=13fl

omwAna

-3MAH 3TAa

ganuoo

TIMU

DRAWING

REFERENCE UNIT

NAME. COURSE.

REFERENCE UNIT

DRAWING

NAME.

COURSE

DATE

30i13H3^3fl

DHIWAflO

.3MAI^

3TAa

38flUO0

TIMU

REFERENCE UNIT

DRAWING

NAME.

COURSE

DATE

DRAWING

REFERENCE UNIT

NAME. COURSE.

DATE-

omwAHa

33H3fl3=?3rt .

3TAa

3MAV\

38RU03

8

TIHU

s

J

5 e

REFERENCE UNIT

DRAWING

NAME. COURSE.

DATE

3DM3fl3=l3«

omwAfla

.3MAH 3TAa

38RUOD

TIMU

DRAWING

REFERENCE UNIT

NAME.

COURSE

DATE

OmWAHQ

331/1333=1311

.3MAH 3TAa

38flU03

TIHU

REFERENCE UNIT

DRAWING

NAME.

COURSE

OmWARQ

3DH3fl3=13n

.3MAM

38RUO0

TIMU

REFERENCE UNIT

DRAWING

NAME.

COURSE

DATE

.

3DH3H3=13fl

Di/iiwAna

.3MAH

TIMU a.

.3TAQ

32HUOD

REFERENCE UNIT

DRAWING

NAME. COURSE.

DATE

.

DRAWING

REFERENCE UNIT

NAME

.

COURSE

DATE

OmWARQ

3D'/13fl3=13n

.3MA^

aeRuoo

TiMU

z

t

o C

DRAWING

REFERENCE UNIT

NAME. COURSE.

DATE

33H3fl3=l3fl

omwAflo 3MAI/I

aiAQ

3eRU0D

TIHU

r:'3

"^3

o