1. Board- Drafting Equipment
Chapter 3
Board- Drafting Equipment

2. Vocabulary Drawing Board Case instruments True Edge Dividers T- Square
Compass
Protractor
Media
Scales
Minimal
Irregular Curve
Template
Vellum
Vocabulary

3. Is usually a large, flat board on which you attach a drawing sheet to make a drawing.
Drawing Board/ Table

4. T-square Used for horizontal lines & as a guide for other instruments4

5. Triangles Tool for drawing vertical & inclined lines 45° Triangle

6. Protractor
Used for drawing inclined lines & angles 6

7. Compass
Tool for drawing circles & arcs 7

8. French Curve Also called an Irregular curve
Consists of a variety of curves that can be used when arcs are not satisfactory 8

9. Divider
Looks like a compass, but both legs have steel pints at the end
Tool used for measurement purposes 9

10. Templates Used to help in drawing shapes & symbols
Templates for producing squares, ellipses triangles, etc. 10

11. Care of Tools Store in cabinet when not in use
Do not cut against edge of plastic tools
Keep wooden tools & boards clean
Occasionally check t-squares for blade alignment 11

12. Drawing Instrument Safety
Pass, do not throw, tools
Use tools with points, such as the compass & dividers, only as directed
Use knives as directed & store them in proper containers 12

13. SCALES The Architects Scale The Mechanical Engineer’s Scale
The Civil Engineer’s Scale
The Decimal Inch Scale
Hand out
SCALES

14. Assignment Page 86 Problems 1-3 Page 87 Problem 4
Complete any drawings on Graph Paper (sketching)
Assignment