The document discusses drafting tools and procedures. It lists common tools used for drafting like a drawing board, T-square, triangles, protractor, compass, divider, templates, and architectural pencils. It also lists common drawing surfaces like drafting paper, vellum, and plastic film. Proper tools allow architects to create detailed working drawings that are needed before construction of a home or building.

1. Drafting Equipment and Procedures

2. Role of Drafting Architectural sketches are rough, unfinished drawings. Final working drawing plan are needed before a home can be built. Detailed specific

3. Drafting Tools Drawing Board T-square Triangle Protractor Compass Divider Template Architectural Pencils Drafting Paper Drafting Tape

4. Drawing Board Made of soft wood – bass wood Surface must be: Flat Smooth

5. T-square Shaped like a T The top is placed along the side of the drawing board The long strip, or blade, is 90 degrees to the head and is used to draw lines across the drawing

6. Triangle Precision tool for drawing lines at specific angles Drafting triangle always has one right angle making it possible to put the triangle against a T-square to draw vertical lines. 30-60-90 Triangle 45-45-90 Triangle

7. Protractor Used to draw angles other than 90, 45, 30, or 60. A half circle with markings for a 180 degree arc

8. Compass Used to draw circles or arcs

9. Divider Tool used to compare sizes of drawing electing

10. Template Flat piece of plastic with standard symbols cut in it – doors, windows, plumbing fixtures, electrical devices, and landscape features.

11. Architectural Pencils Made with a number of grades ranging from hard to soft. 9H is the hardest grade 7B is the softest grade In general 4H is used for light layout lines and guide lines while a sharp H is used for thin dark line such as dimension lines. A blunted F is used for think/dark object lines.

12. Drafting Paper Paper Vellum Plastic film

13. Drafting Tape Used to mount papers to the drawing boards to avoid damage to the plans or the board.