Nema 17 5:1 Planetary Gearbox
thingiverse
I tweaked Jag's gearbox by modifying two elements. I shortened the sun slightly since I encountered issues with his design, and I replaced the planets with six MR63-ZZ (3 x 6 x 2.5 mm) Ball Bearing units (available at http://amzn.to/1Yr8dKi), as I already had these in my inventory. The remaining components remain unchanged. To assemble this gearbox, you will need one of each part, except for the planets, which require three units. Printing Details Printer Brand: RepRap Printer Model: Folgertech 2020 i3 Rafts: No support needed Supports: Not required Resolution: .3mm precision Infill Percentage: 30% density Notes: Printed with PET-G material.
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