Engineering Drawing from the Beginning

List of Illustrations

Introduction

One. Introduction to Equipment


1.1 The Drawing Board


1.2 The Tee-square


1.3 Set-squares


1.4 Pencils


1.5 Drawing Paper


1.6 Erasers


1.7 Compasses


1.8 Ruler


1.9 Methods of Attachment


1.10 Pencil Sharpening Medium


1.11 Pencil Sharpening


1.12 How to Use Drawing Instruments


1.13 Lettering and Figuring


1.14 Printed Words and Notes etc.

Exercises

Two. Early Work on Geometrica Construction


2.1 Types of Lines


2.2 Drawing Various Shapes


2.3 Types of Lines Illustrated


2.4 Arrow Heads


2.5 Further Work with 45° and 60° Set-squares


2.6 Further Work on Types of Lines


2.7 Further Lettering


2.8 Conclusion

Exercises

Three. Simple Geometrical Constructions


3.1 Angles


3.2 Bisection of Angles


3.3 Triangles


3.4 Quadrilateral


3.5 The Circle


3.6 Inscribed and Circumscribed Circles


3.7 The Division of Lines


3.8 The Diagonal Scale

Exercises

Four. Types of Projection


4.1 Simple Perspective Drawing


4.2 Simple Isometric Drawing


4.3 Orthographic Projection


4.4 First Angle Projection (English)


4.5 First Angle Projection (continued)


4.6 Third Angle Projection (American)


4.7 Third Angle Projection (continued)

Exercises

Five. The System of Dimensioning


5.1 Introduction


5.2 Dimension Lines Not to Intersect


5.3 Overall Dimensions to Be Clearly Shown


5.4 Corresponding Dimensions in Corresponding Places


5.5 Dimensions from Two Faces at Right Angles


5.6 Double Dimensioning Must Be Avoided


5.7 Dimensions from "Corner to Comer"


5.8 For Turned Parts Give Diameters, Not Radii


5.9 Symmetrical Shapes


5.10 Points Not Covered by Foregoing Rules

Exercises

Six. First Angle, or English, Projection


6.1 Orthographic Projection


6.2 Orthographic Projection


6.3 Scale Drawings


6.4 Full Sections and Hidden Detail


6.5 Half-sections


6.6 Drawings of Simple Objects


6.7 Exercise A, Fig. 30(a)


6.8 Exercise B, Fig. 30(b)


6.9 Exercise C, Fig. 30(c)


6.10 Exercise D, Fig. 30(d)

Exercises

Seven. Their Angle, or American, Projection


7.1 Orthographic Projection


7.2 Orthographic Projection


7.3 Full Sections


7.4 Half-sections


7.5 Drawings of Simple Objects


7.6 Exercise A, Figs. 30(a) and 36(a)


7.7 Exercise B, Figs. 30(b) and 36(b)


7.8 Exercise C, Figs. 30(c) and 36(c)


7.9 Exercise D, Figs. 30(d) and 36(d)

Exercises

Eight. Screw Threads


8.1 A Typical Screw


8.2 Thread Section Data


8.3 Whitworth Thread, Step-by-step Construction


8.4 B.A. Thread


8.5 Acme Thread


8.6 Square Thread


8.7 Unified Thread


8.8 Screw Threads (Convention)


8.9 Square Thread (Convention)

Exercises

Nine. Freehand Drawing of Engineering Parts


9.1 Freehand Drawing


9.2 Freehand Isometric


9.3 Freehand Isometric


9.4 Freehand Orthographic. An Elbow


9.5 Freehand Orthographic. A Tee-piece


9.6 Freehand First Angle Projection. A Square Flange


9.7 Freehand Third Angle Projection. A Square Flange


9.8 Freehand First Angle Projection. Oval Flange


9.9 Freehand Third Angle Projection. Oval Flange


9.10 Freehand First Angle Projection. Stud


9.11 Freehand Third Angle Projection. Stud


9.12 Freehand First Angle Projection. Sheet Metal Bracket


9.13 Freehand Third Angle Projection. Sheet Metal Bracket


9.14 Freehand First Angle Projection. Cast Cover


9.15 Freehand Third Angle Projection. Cast Cover


9.16 Isometric Sketches for Freehand Drawing


9.17 Isometric Sketches for Freehand Drawing


9.18 Isometric Sketches for Freehand Drawing

Exercises

Ten. Mechanical and Electrical Detail Parts


10.1 Fastenings (Screws and Bolts)


10.2 Hexagon Nut


10.3 To Draw a Hexagon Nut by a Quick Method


10.4 Hexagon Headed Bolt


10.5 Studs


10.6 Keys

10.7 3/4-in. Tee


10.8 3/4-in. Normal Bend


10.9 3/4-in. Single Saddle


10.10 Wiring Diagram

Exercises

Eleven. Simple Assemblies


11.1 Bearings


11.2 Isometric and Third Angle Projection of Footstep Bearing


11.3 Outlining the Assembly


11.4 Dimensioning an Assembly Drawing


11.5 First Angle Projection of Footstep Bearing


11.7 Coupling in Third Angle Projection


11.8 Simple Pulley and Bracket


11.9 Assembly in Third Angle Projection


11.10 Outlining the Assembly


11.11 Assembly in First Angle Projection

Exercises

Twelve. Simple Machine Tools and Components


12.1 Revision of Useful Data


12.2 The Drawing of a Section


12.3 Parts Not Sectioned


12.4 Simple Bushed Bearing


12.5 Method of Producing the Drawing in Third Angle Projection


12.6 Method of Producing the Drawing in First Angle Projection


12.7 Detailed Parts, Third Angle Projection


12.8 Headstock for Small Lathe


12.9 Assembly in First Angle Projection


12.10 Third Angle Projection, Explanation


12.11 Detailed Drawing of a Bearing Bracket. Part No. 1


12.12 Pulley. Part No. 2


12.13 Bearing Bush. Part No. 3


12.14 Hollow Mandrel. Part No. 4


12.15 Screwed Collar. Part No. 5


12.16 Stud. Part No. 6

Exercises

Answers

Author's Note