I'm so thrilled to present the final design of my 3d Printed Gearbox for a NEMA 17 stepper motor. The new design is a major improvement on the first prototype in so many aspects, just to name a few things: stronger construction, a lot of mounting points, position feedback with a hall effects sensor, more gear reduction and thus more torque.

The video has been some time on the way now, and has taken quite some effort, so I really hope you enjoy it!

If you haven't watched the first video already, you can find it here:
   • NEMA 17 Gearbox with NO backlash!  

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RESSOURCES

Files for 3D printed parts:
https://www.thingiverse.com/thing:444...

Additional parts needed:
- NEMA 17 Stepper motor + driver (from Banggood)
- Hall Effect Sensor (from Banggood)
- 3 pcs. 5x11x5mm Ball bearings (from Amazon)
- 25x37x7mm Ball Bearing (from Banggood)
- 2x3 mm neodymium magnet (from eBay)
- 5mm steel/aluminum round bar (from eBay)
- 2 pcs. 200 mm GT2 belt loops (from Amazon)
- Ruthex M3 Threaded inserts (from Amazon)
- M3 and M4 nuts and bolts (from Amazon)

NB: If you make it, let me know! Send me a link/photo/video of your build – or post a make on Thingiverse ;)

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