Beam Compasses

| View Cart ⇗ | Info

For larger circles beam compasses are used. The two parts called channels which carry the pen and the needle point are clamped to a wooden beam at a distance equal to the radius of the circle. The thumb nut underneath one of the channel pieces makes accurate adjustment possible.

Source

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

Downloads

TIFF (full resolution)

2400×1055, 222.1 KiB

Large GIF

1024×450, 24.9 KiB

Medium GIF

640×281, 13.9 KiB

Small GIF

320×140, 6.0 KiB