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Print in Place Harmonic Drive Gearbox, hero tilt

Print in Place Harmonic Drive Gearbox

A fix that fits your shop, not somebody else's.

8.9k downloads in the maker community

$14.99

Color: Gray

Printed in the USA when you order.

  • Made in the USA, printed when you order
  • Secure checkout, safe, encrypted, and trusted
  • Real human support, we are here to help
  1. 1.You order it
  2. 2.We print it fresh
  3. 3.It ships to you
  • Working 94.5:1 gearbox prints fully assembled
  • No supports needed, ready to spin off the bed
  • Bold demo of harmonic drive and planetary gear concepts
  • A standout maker shelf piece and STEM teaching aid
  • Sparks great conversations about mechanical design

You pull it off the print bed, give the input a turn, and the output spins very, very slowly. That is the magic of a 94.5 to 1 reduction in your hand. This harmonic drive gearbox prints fully assembled, no supports, no glue, no bolts.

The design pairs a flexible output ring with a planetary gearset for two stages of reduction. The crinkled belt forms gear teeth on both sides, which is a clever twist on the traditional toothed-belt approach.

Use it as a desk demo, a mechanical engineering teaching aid, or a maker portfolio piece. A satisfying object that says a lot about what 3D printing can do.

Will it fit? Check the numbers.

Size
70 × 70 × 52 mmabout the size of a soda can
Material
PLA, solid color
Made
In the USA, printed when you order
Works with
Ring

Sizes come from the real model file, not a guess.

Want a different size? Have your own design?

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$14.99

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