Is this 3D model free to download?

Yes, Spiral Hoop Gear 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 HenriDIY, 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.

Spiral Hoop Gear 3D printable model by HenriDIY

Spiral Hoop Gear

Source: Thingiverse by HenriDIY

The Spiral Hoop Gear is a free printable 3D model from Thingiverse by HenriDIY. Interesting and rare gear design. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

457 saves Source: Thingiverse Updated 2026-10-25 License: CC-BY-NC-SA · non-commercial 5 makes Category: Vehicles & RC

Tags: Gear, worm gear

About this model

Interesting and rare gear design. I could't find any information about this or what it is even called, but luckily nice people from Reddit helped me to figure it out. One interesting example of usage is in motion picture camera patent from year 1960: It would be nice to hear if you have seen this been used somewhere. Parts are easy to print and assembly can be done with superglue. Also drop of oil won't hurt in bearing surfaces. - 13.2.2018 Updated "Worm" gear. Runs smoother and has less play.

Frequently asked questions

Is this 3D model free to download?: Yes. Spiral Hoop Gear 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 HenriDIY.
Who made this model?: Designed by HenriDIY, 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.