These are 3D-printed gears identical in size and shape to the gears output by the FoldMecha program, free educational software that is part of the Paper Mechatronics project, a collaborative effort between The Concord Consortium, University of Colorado, Boulder, and Georgia Tech.

All gear files are scaled to 3 mm thick.

Size 1: 40 mm diameter Size 2: 50 mm diameter Size 3: 60 mm diameter

Gears with centers 3/16" have the file name GearLgCenterSz[1, 2, or 3].

Rack: 180 mm long

Paper Mechatronics is funded by the National Science Foundation, Award #1735836, Program IIS-Div. of Information and Intelligent Systems.