$1,11Planetary Gearbox 4:1 for NEMA 17 #07 – Printable Involute Gear Reducer, 608 Bearing, 8 mm Output | 6 PartsCults3D
$1,99Planetary Gear Fidget - Print-in-Place Herringbone Gears, One Print, No Supports, No AssemblyCults3D