All generators › Gears and drives
Spur, helical and herringbone gears with real involute teeth.
Generate gears by module and tooth count with proper involute teeth. Choose spur, helical or herringbone, set the shaft hole, and read off the shaft spacing.
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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.

GT2, HTD, XL, MXL and T-series pulleys with any tooth count.

Roller bearings that print already assembled.