Tourbillon Desk Toy
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This is a tourbillon desk toy that I designed and 3d printed. It uses the internal spring from a retractable badge reel as the mainspring, and can run for around four and a half minutes.
Video (with assembly):
https://www.youtube.com/watch?v=dB2DK8xBEGc
WARNING: I designed this with tolerances specifically for my own 3d printer and filament. The mechanism is a bit finnicky; if you're looking for something that prints and works out-of-the-box, I would recommend trying other tourbillon models that have been tested and iterated on for different printers. Hopefully this is still useful as a reference though!
The fusion360 files are available at:
https://github.com/kevinbchen/tourbillon-desk-toy
Unfortunately I can't find the exact badge reel I used, but it was similar to:
https://www.amazon.com/dp/B0D176S2V7?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1
The one linked above has some differences:
- Slightly smaller diameter (may need to glue the RachetGear.stl part)
- Winds clockwise instead of counter-clockwise.
The parts are designed with a reel that winds counter-clockwise (with the open side face-up). For a reel that winds clockwise, you'll need to mirror the entire base, pallet fork, and escape wheel objects:
- FrameMiddle.stl
- FrameBase.stl
- RachetGear.stl
- DriveGear.stl
- Pallet.stl
- EscapeWheel.stl
The files prefixed with "PrintedMainSpring" are for the version that uses a 3d-printed mainspring. This one only runs for around a minute, but doesn't require the badge…
