Geared fidget spinner based off of several other designs I've seen, I'm not sure where it originated from. The bearings are linked so spinning the case around the central bearing spins the outer bearings and vice versa. This one uses magnetic gears instead of traditional gears.
Parts:
Uses 48 - 4x2 magnets* on the gears, more if you also use them to hold the parts together (or you can use glue dots*. The magnets on the gears alternate between north and south facing out.
Needs 5 - skate bearings* (there are two in the center). It'll probably work better with ceramic ball / magnetic steel bearings*, but I used normal metal bearings (which are affected by the magnets and only spins for a few seconds).
Filament:
Atomic Filament Starry Night PLA and Filamentum Vertigo Gray* and Rapunzel Silver* PLA.
*affiliate links
Supports:
Yes
Notes:
The center hub needs support, there are different options for the outer gears (I used the split version) and the finger grips.
