9
Section 1
Introduction to Drafting 20
1 Drafting and the Drafter 21
Drafting as a Communication Tool 22
Sketches • Mechanical Drawings • Sets of
Drawings • Presentation Drawings • Other Types
of Technical Drawings
Drafting as a Problem-Solving Tool 24
Drafting as a Design Tool 27
Using the Design Method • Steps in the Design
Method
Models 29
Scale Models • Mockups • Prototypes • Virtual
Reality • Stereolithography
Careers in Drafting 31
Drafting Trainee • Detail Drafter • Layout Drafter
• Design Drafter • Checker • Technical Illustrator
Careers Related to Drafting 33
Architect • Industrial Designer • Engineer
2 Traditional Drafting Equipment
and Drawing Techniques 41
Drafting Equipment 42
Instruments • Other Equipment • Drawing Boards
• T-Square • Parallel Straightedge • Triangles
• Drafting Machine
Drafting Media 44
Paper • Tracing Paper • Vellum • Polyester Film
• Fastening the Drawing Sheet to the Board
Expanded Contents
Drawing Pencils 46
Sharpening the Pencil
Alphabet of Lines 47
Object Lines • Hidden Lines • Section Lines
• Centerlines • Dimension Lines, Extension
Lines, and Leaders • Cutting-Plane Lines • Break
Lines • Phantom Lines • Datum Dimensions
• Construction Lines • Border Lines
Erasing and Erasing Tools 51
Erasing Procedure • Electric Erasers
Neatness in Drafting 52
Scales 53
Architect’s Scale • Civil Engineer’s Scale
• Mechanical Engineer’s Scale • Combination Scales
• Metric Scales • Drawing to Scale • Reading
the Scale • Usage of “Scale” and “Drawing Size”
• Laying Off Measurements
Sheet Format 58
Sheet Margins • Title Block
Drafting Instrument Procedures 59
Drawing Horizontal Lines • Drawing Vertical Lines
• Drawing Inclined Lines • Drawing Parallel Inclined
Lines • Drawing a Perpendicular to an Inclined Line
Using a Protractor 62
Using a Compass 63
Beam Compass • Sharpening the Compass Lead
• Drawing Arcs and Circles
Drafting Templates 65
Dividers 66
Proportional Dividers
Irregular Curves 68
Pencil Techniques with Instruments 69
Inking 69
Instruments for Inking • Procedure for Inking