fidget gears
thingiverse
I actually just wanted to see what kind of gears work and which do not. But the first testprint turned out so well that I couldn't stop fidgeting with it. So here you go. Have fun! 2x M3*6 countersunk screws needed. Don't tighten them, just screw 'em as far as they go witout fixing the gears in place.
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