Nema 17 planetary gear 3:1

thingiverse

This planetary gear is designed specifically for my 3D printers extruder. It matches the exact dimensions of a NEMA 17 stepper motor precisely. As it stands, this project is still in progress, and I need to add a coupling system to the motor itself. Here's what you'll need to buy: * Three 603 bearings * One 604 bearing * Two 608 bearings * Six M3x10mm screws * Three M3 nuts * Eight M2x7mm screws You'll also have to print out these STL files: * Planetarygear-shaft.stl * Planetarygear-rotor-m3.stl * Planetarygear-drive-gear.stl * Planetarygear-housing-1.stl * Planetarygear-housing-2.stl * Three planetarygear-gear-603.stl Keep in mind that for the gears and housing-1, you may want to slow down your print speed a bit. If your prints are imperfect, it can cause more friction. A modified housing for connecting with a NEMA 17 motor will be available soon.