Is this 3D model free to download?

Yes, Spherical Differential 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 SavageRodent, 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.

Spherical Differential 3D printable model by SavageRodent

Spherical Differential

Source: Thingiverse by SavageRodent

The Spherical Differential is a free printable 3D model from Thingiverse by SavageRodent. Just to repeat, this is a work in progress. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

5,606 saves Source: Thingiverse Updated 2026-10-25 License: CC-BY · commercial OK 36 makes Category: Gadgets & Electronics

Tags: cogs, cog ball, differential ball, fidget, Gear, gears, gear ball, gear sphere, mechanical, mechanism, ornament

About this model

Just to repeat, this is a work in progress. At some point I will give it a drive shaft etc. However for the time being I've just given it a stand so you can spin the ring wheel by hand till your hart's content :) The photos are out of date. Check out the stl of the assembled parts for the most up to date view. I'm using four 3x10 screws to hold the frame together and one 3x20 to hold the two halves of the core together.

Frequently asked questions

Is this 3D model free to download?: Yes. Spherical Differential 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 SavageRodent.
Who made this model?: Designed by SavageRodent, 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.