Watt Parallel Motion
To accompany Folding and Unfolding in Computational Geometry:Part I: Ch.4.1.2: Watt Parallel Motion: Fig.14
Last Update:

A Watt linkage. Joints x and y are pinned. Joints a and b are free. The locus of point c is the figure 8-curve.

Please enable Java for an interactive construction (with Cinderella).

Created with Cinderella
Applet created by Joseph O'Rourke.