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The Counterintuitive Gear fidget MkII
IP Report
Print Profile(2)
0.2mm layer, 2 walls, 15% infill, random seams
Designer
4.2 h
1 plate
0.2mm layer, 2 walls, 15% infill, two-color
3.8 h
1 plate
Open in Bambu Studio
Boost
271
761
90
64
1.1 k
758
Released
Description
Bigger! More planets! Faster planets! Even more counterintuitive!
You probably have played with some planetary gears, they are cool stuff, especially those print-in-place herringbone ones. This “Counterintuitive Gear” model however has a double row of planets, which lead to some counterintuitive behavior:
| normal planetary gears | counterintuitive gears | |
| When you hold the ring and turn the sun gear, | the planets move in the same direction. | the planets move in the other direction. |
| When you hold the sun still and turn the ring, | the planets move in the same direction, but slower than the ring. | the planets move in the same direction, but faster than the ring. With MkII's bigger sun gear the planets move even faster, nearly 2 rotations for one ring rotation. |
The hex holes should fit regular hexagonal pencils or the hand crank (I suggest using more than one).
The MkI (with smaller sun) can be found here.
License
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