drafting machine

instrument

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Last updated

June 25, 2026

Quick Summary

A drafting machine is an instrument that combines the functions of a T square, triangle, protractor, and scale. Introduced around 1930, it allows a straightedge to move while maintaining a set angle relative to the drawing board's edge. This efficiency tool greatly speeds up the drawing process by performing multiple tasks simultaneously, unlike traditional individual instruments. While computers and CAD software have since revolutionized drafting, the drafting machine was a significant advancement in manual drafting equipment.123

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drafting
Equipment
The drafting machine, introduced about 1930, allows a straightedge to be moved while maintaining any desired angle between it and the edge of the drawing board. Combining the functions of the T square, triangle, protractor, and scale, it greatly increases the efficiency of producing a drawing.
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The drafting machine, introduced about 1930, allows a straightedge to be moved while maintaining any desired angle between it and the edge of the drawing board. Combining the functions of the T square, triangle, protractor, and scale, it greatly increases the efficiency of producing a drawing.
Read More