Planetary Gear Fidget Spinner - Print in Place Herringbone Gears

A satisfying **print-in-place planetary gear fidget** with herringbone teeth: sun gear, 3 planets and a ring gear that all spin together straight off the printer. - Herringbone (double-helical) teeth keep every gear captured – nothing falls out - Involute tooth profile, 12/9/30 teeth, module 1.5 - Hex hole in the centre: spin it on your finger or a pencil - Grippy notched rim, Ø58 × 10 mm --- **NL:** Planetaire tandwiel-fidget, print-in-place: zonnewiel, 3 planeten en ringwiel draaien direct na…

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