Reuleaux Triangle Bearing Gears - 3D Printable Fidget Toy
Design preview. Rendered from the file, not a photo.
This model is not currently offered as a verified ready to buy print.
What it does
- Functional planetary gear set based on Reuleaux Triangle bearings and constant-width shapes
- Mesmerizing mechanical fidget toy that looks impossible but actually works
- Modular design prints as individual components for easy assembly post-print
- Perfect desk toy for makers, engineers, and fidget enthusiasts
- Print on demand, delivered ready to assemble and use
Experience the magic of impossible geometry with this functional Reuleaux Triangle Bearing Gears set. Based on fascinating mathematical principles of constant-width shapes, these planetary gears create a captivating fidget toy that defies expectations. Watch as the gears mesh and rotate in ways that seem to violate the laws of mechanics, but they work perfectly.
This mechanical toy combines engineering precision with fidget-spinner appeal. The modular component design ensures reliable printing and easy post-print assembly. Simply flex the external ring gear to snap components together. Ideal for makers, STEM enthusiasts, and anyone who loves hands-on mechanical toys that spark conversation.
Not affiliated with, endorsed by, or sponsored by Ring. Ring and its product names are trademarks of their respective owners.
21k downloads in the maker community. That is interest in the design on the site it came from, not our sales.
What you get
- This design prints as one piece.
- Nothing else to print or buy for this to work.
What it is made of
Designs like this print well in PLA. Compare the materials.
Printed plastic is strong for its size, but it is not metal. We have not load tested this design, so we do not publish a weight rating. Keep it out of a hot car and away from open flame.
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Who made this design
Designed by DarlesChickens. We did not draw it.
Shared under Creative Commons, credit required. See the original design