Print-in-Place Planetary Gear Fidget Spinner - Herringbone Gear Bearing, 3 Mini Rotors, No Supports - STL + 3MF

A fidget spinner whose bearing is a working gearbox: the three-lobed body is the ring gear of a herringbone planetary set, so when you pinch the sun and flick the body, six planets roll round inside it. The whole thing prints flat in one go - no bearings, no assembly. **The gear bearing** - Sun 13 teeth, six planets 8 teeth, ring 29 teeth, module 1.5, true involute teeth - 30 degree herringbone - the V-shaped teeth keep every gear locked in height, so nothing falls out and it runs smoothly - Cl…

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