Is this 3D model free to download?

Yes, Epicyclic Planetary Gearbox 43.3:1 No Hardware, Less Backlash NEMA 17 is free to download from MyMiniFactory. Open it in the free Thinger app, or use the "Download from MyMiniFactory" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by MyMiniFactory. Use the "Download from MyMiniFactory" 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 John Doe, published on MyMiniFactory. 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.

Epicyclic Planetary Gearbox 43.3:1 No Hardware, Less Backlash NEMA 17 3D printable model by John Doe

Epicyclic Planetary Gearbox 43.3:1 No Hardware, Less Backlash NEMA 17 photo 1

Epicyclic Planetary Gearbox 43.3:1 No Hardware, Less Backlash NEMA 17 photo 2

Epicyclic Planetary Gearbox 43.3:1 No Hardware, Less Backlash NEMA 17 photo 3

Epicyclic Planetary Gearbox 43.3:1 No Hardware, Less Backlash NEMA 17

Source: MyMiniFactory by John Doe

The Epicyclic Planetary Gearbox 43.3:1 No Hardware, Less Backlash NEMA 17 is a free printable 3D model from MyMiniFactory by John Doe. Updates!4/27/17-Made another version of this with a higher gear ratio, they are 100% compatible -- might not be released yet... You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from MyMiniFactory

297 saves Source: MyMiniFactory Updated 2026-10-06 License: DOWNLOAD-SHARE-MAINTAIN-LICENSE-CREDIT-REMIX-NONCOMMERCIAL · non-commercial

Tags: modular, robot, gear, extruder, arm, differential, ratio, gearbox, Robotics, 3D_printing, Bowden, planetary, fusion_360, FilamentChallenge, 49:1

About this model

Updates!4/27/17-Made another version of this with a higher gear ratio, they are 100% compatible -- might not be released yet... 4/14/17- The D-Shaft Hole was not perfectly centered on the one piece sun. Fixed this issue with One Piece sun V2.Uploaded the Rotating Base 2/27/17- I designed a one piece sun gear for this, one version with a large drive gear on it and one version with a 5mm D shaft hole, the one piece sun gear is compatible with the 3 & 4 module planet gears. if your using the 4th module you may choose to use the #2 sun gear in module 4 in conjunction with this. Using the one piece sun is a good upgrade for this as it cuts down on backlash. I designed this gearbox for my Modular Robot Arm Project, check it out! :Original model: Print model: Susan Base: Both models are 100% comp…

Frequently asked questions

Is this 3D model free to download?: Yes. Epicyclic Planetary Gearbox 43.3:1 No Hardware, Less Backlash NEMA 17 is free to download from MyMiniFactory. Open it in the free Thinger app, or use the "Download from MyMiniFactory" link above to open the original listing.
Where is the STL hosted?: The download is hosted by MyMiniFactory, not by Thinger. We link you directly to the original listing by John Doe.
Who made this model?: Designed by John Doe, published on MyMiniFactory. 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.