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This design is inspired by Bridgestone's airless tire concept:
Using the natural springiness of plastic, this design can absorb shock and vibration in a manner similar to a pneumatic tire, but cannot be punctured.
This design is fully parametric.
Update: Added tiny (0.001) offset between spirals. Openscad errored when trying to export an STL otherwise.
Tweak values to suit your application, compile, slice and print! If you're having traction problems, I suggest a zig-zag of hot glue around the circumference to give it a more frictious surface.
Parametric airless tire by tjhowse is licensed under the GNU - GPL license.
So what's this mean?
We're sure tjhowse would love to see what you've printed - take a photo and share it on Thingiverse as a Make.
To post a Make simply visit this Thing again and click I Made One to start uploading your photo. You can also download the Thingiverse Mobile app (available via Google Play and Apple App Store) to take a photo and upload your Make right from the app!