Technical Drawings in Interiors

TECHNICAL DRAWINGS IN INTERIORS 4(1+3)

Lesson 1: Drafting Equipment – Tools And Materials

Triangles / Set Squares

Set Squares are used to draw accurate angles. The most common configurations are 45 and 60 / 30 degrees. (Figure – 7) When using set squares they should always used along with a T-Square. The Set-square rest on the straight edge of the T-Square and this ensures when the angle is drawn that it is accurate. Triangles are made with two types of edges. Those with a square edge are made for use with lead and those with offset edge which prevents ink from running under the triangle and smearing are made for use with ink. Pins and Clips are also used in fixing the media to the board

Square edge

Offset edge

Fig 7 Set Squares

Fig 8 Adjustable Square

An adjustable square is a set square (figure – 8) which can be adjusted to almost any angle. When adjusted a small screw is hand tightened, locking the set square in position. This means that there is no need to have 45 and 30 / 60 degree set squares. They are a little expensive than normal set squares