Is this 3D model free to download?

Yes, Nema 17 Stepper 5:1 Planetary Reducer is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by Thingiverse. Use the "Download from Thingiverse" link on this page to open the original listing and grab the file, or save it to your print queue in the free Thinger app.

Designed by jag, published on Thingiverse. Please credit the creator when sharing your print.

Can I print this at home?

Yes. This is a printable 3D model intended for home FDM and resin printers. Check the original listing for suggested print settings.

Nema 17 Stepper 5:1 Planetary Reducer 3D printable model by jag

Nema 17 Stepper 5:1 Planetary Reducer photo 1

Nema 17 Stepper 5:1 Planetary Reducer photo 2

Nema 17 Stepper 5:1 Planetary Reducer photo 3

Nema 17 Stepper 5:1 Planetary Reducer photo 4

Nema 17 Stepper 5:1 Planetary Reducer

Source: Thingiverse by jag

The Nema 17 Stepper 5:1 Planetary Reducer is a free printable 3D model from Thingiverse by jag. This is still a bit of a work in progress but I think it's mostly workable now. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

3,058 saves Source: Thingiverse Updated 2026-11-05 License: CC0 · commercial OK 15 makes Category: Other

Tags: Fushigi, Gear, gearbox, multi-part, NEMA, nema17, openscad, part, planetarka, planetary, Planetary Gear, Planetary Gearbox, stepper, useful

About this model

This is still a bit of a work in progress but I think it's mostly workable now. Warning! There be overhangs here! I have yet to see what sort of torque this can handle but it seems like it will handle quite a bit. I'm able to stop it if I grab two of the screws sticking out of the planet carrier. Hopefully I'll measure the torque soon. This is intended to be used with another bearing somewhere on the output shaft. I can't imagine that it would handle any load with only one bearing on there. A different cover could easily be made with a spot for another bearing. The current design adds 38.5mm in length to your stepper, it could be less but the makerbot supplied stepper that I have has long shaft so I had to make it longer to stop it from interfering with the bolt for the output. It could pr…

Frequently asked questions

Is this 3D model free to download?: Yes. Nema 17 Stepper 5:1 Planetary Reducer is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link above to open the original listing.
Where is the STL hosted?: The download is hosted by Thingiverse, not by Thinger. We link you directly to the original listing by jag.
Who made this model?: Designed by jag, published on Thingiverse. Please credit the creator when sharing your print online.
Can I print this at home?: Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.