The file 'Parametric Airless Tire With Cutout 3D Printer Model' is (scad,stl) file type, size is 220.9KB.
The original design was made by tjhowse: http://www.thingiverse.com/thing:17514
It was modified by me in 2 ways:
spiralwheel.scad | 3.5KB | |
spiralwheel.stl | 2.1MB |