Fidget Kit Business Card remix

I really liked the original but could not get the axles to print at proper size after laying the original model down on the print bed. (If you do this, take care to put it on the correct side!) My solution was to print a spacer that takes an M3 bolt and assemble using two M3x12 bolts and hex nuts.

The spacer's outer diameter is just enough smaller than the hole in the gears to allow them to turn freely. The bushing is just slightly (about 0.5mm) longer than the thickness of the gears. Dep