Parametric airless tire
by tjhowse, published
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.
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With a grip_depth of 1, and a grip_density of 0.5, 50% of the outer circumference of the wheel will be raised, and 50% will be lowered.
Make sure you're rendering the model in openscad before the export. Do this by pressing F6. Also make sure you're using the latest version of openscad.
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