Positioning Pen for Constructions

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Illustration showing the correct and incorrect position of a right line pen against a T-square, triangle, or straight edge when doing geometric constructions.


Kenison, Ervin Mechanical Drawing (Chicago, IL: American School of Correspondence, 1916)


TIFF (full resolution)

2400×391, 203.8 KiB

Large GIF

1024×166, 21.6 KiB

Medium GIF

640×104, 11.2 KiB

Small GIF

320×52, 4.5 KiB