The file 'Tank Track For Solid Roller 3D Printer Model' is (stl) file type, size is 10.5KB.
Tank tracks for solid roadwheels.
You can use a software "wood gears" to make a drive wheel for this design.
http://woodgears.ca/gear/index.html
Unfortunately it costs money which is quite understandable though.
powerful_fyyran_1.stl | 51.9KB |