Drag to turn, scroll or pinch to zoom. Grid squares are 10 mm.
Building the model…
All generators › Gears and drives
GT2, HTD, XL, MXL and T-series pulleys with any tooth count.
Make a timing pulley for the belt you have, with the number of teeth you need, flanges, a hub and a set screw hole.
Everything runs in your browser: nothing is uploaded and there is no sign-up.

Spur, helical and herringbone gears with real involute teeth.

Two gears that mesh, from the shaft spacing and the ratio you need.

A casing with teeth inside, and the gear that runs in it.

Sun, planets, ring and carrier that fit your casing and ratio.

A gear set that comes off the bed already assembled.

A strain wave gear with a printed flexible cup.

A harmonic drive that uses a timing belt as the flexible part.

Roller bearings that print already assembled.