Is this 3D model free to download?

Yes, NEMA 17 Gear Joint (Print In Place) is free to download from MakerWorld. Open it in the free Thinger app, or use the "Download from MakerWorld" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by MakerWorld. Use the "Download from MakerWorld" 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 keeeal, published on MakerWorld. 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 Gear Joint (Print In Place)

Source: MakerWorld by keeeal

The NEMA 17 Gear Joint (Print In Place) is a free printable 3D model from MakerWorld by keeeal. This joint is compact along its rotation axis as is desirable for various robotic arm projects. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from MakerWorld

332 saves Source: MakerWorld Updated 2026-09-27 Print time: 2h 16m Filament: 64 g License: CC-BY · commercial OK ★ 4.3 (4) 127 makes Category: Vehicles & RC

Tags: gear, hinge, joint, motor, nema, nema 17, printinplace, robot, stepper, mount

About this model

This joint is compact along its rotation axis as is desirable for various robotic arm projects. The gear ratio is 2:1 which provides a good balance between torque and speed. The joint part prints in place, requiring only M3 bolts to mount the NEMA 17 stepper motor. The tolerances (gaps) can be modified in the OpenSCAD file provided. If you find the joint is stuck after printing, a gentle knock with a hammer may be required to release it. I have since made a robotic arm based on this design too: :)

Frequently asked questions

Is this 3D model free to download?: Yes. NEMA 17 Gear Joint (Print In Place) is free to download from MakerWorld. Open it in the free Thinger app, or use the "Download from MakerWorld" link above to open the original listing.
Where is the STL hosted?: The download is hosted by MakerWorld, not by Thinger. We link you directly to the original listing by keeeal.
Who made this model?: Designed by keeeal, published on MakerWorld. 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.