Is this 3D model free to download?

Yes, Print in place Cycloid Gearbox, For 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 Ryan Kelly, 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.

Print in place Cycloid Gearbox, For NEMA 17 3D printable model by Ryan Kelly

Print in place Cycloid Gearbox, For NEMA 17 photo 1

Print in place Cycloid Gearbox, For NEMA 17

Source: MyMiniFactory by Ryan Kelly

The Print in place Cycloid Gearbox, For NEMA 17 is a free printable 3D model from MyMiniFactory by Ryan Kelly. This is a Print-in-place gearbox designed for a NEMA 17 stepper motor. It uses the supportless printing freedom that SLS allows to be as compact as possible. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from MyMiniFactory

30 saves Source: MyMiniFactory Updated 2026-10-28 License: DOWNLOAD-SHARE-MAINTAIN-LICENSE-CREDIT-REMIX-NONCOMMERCIAL-EXCLU · non-commercial

Tags: mechanical, parametric, 3dprinted, fusion, printinplace, stepper, gearbox, Fusion360, nema17, SLS, MadeForSinterit, Sinterit, cycloid, Mechatronic

About this model

This is a Print-in-place gearbox designed for a NEMA 17 stepper motor. It uses the supportless printing freedom that SLS allows to be as compact as possible. The intent is one could print the design, pull it out of the powder bed, and slap it on a nema motor as a whole unit. This gearbox is part of a larger ongoing project which will be an SLS'ed Print-in-Place robot arm. I dont anticipate the arm being amazingly precise or inherintly useful but it would be a great "flex" print for SLS machines and would really showcase the mechanical attributes of the technology. The model is fully parametric and was done in fusion 360. There are approximatly 16 points on the cycloid curve which define points on the mathmatically correct cycloid. These points are then connected with a spline to app…

Frequently asked questions

Is this 3D model free to download?: Yes. Print in place Cycloid Gearbox, For 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 Ryan Kelly.
Who made this model?: Designed by Ryan Kelly, 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.