Treads
This is a section of tread for a RC Nerf Tank I'm designing.
Sprocket Idler: http://www.thingiverse.com/thing:35909
Smaller Idler: http://www.thingiverse.com/thing:35950
These are being used on my RC Nerf Tank:
http://www.thingiverse.com/thing:36305
These were printed on Tiny, my overly large 3d printer. Details and updates on my printer can be found on https://ottersoft.ca/blog