CC  BY -SA 4.0

The Wheels fit onto the shafts of the Motors, and a CodeRcar kit needs four of them. They are different from the wheels that normally come with the yellow DC Motors in that they have longer shafts so they will fit.

Also, starting in Version 0.5.2, each Wheel has tiny traction bumps around it, with actually do help with maneuverability on wood/tile floors.

At some point, I’ll release a Wheel Customizer that you can use to make your own home-made 3D models for your wheels.

Also, the Wheels are the only parts where dimensions actually matter. See, if you print a wheel with a shaft that has too big or two small an adapter for the motor’s shaft, it won’t fit correctly. Proper wheels should be snug, and should require a bit of fiddling back and forth to get on the Motors properly. They should not be too easy to pull off, they shouldn’t wobble, and they shouldn’t be so tight you need vice grips to get them off.

So, you may want to test a print with a Wheel Shaft Tester before wasting plastic on a Wheel that won’t fit. If you need any help with fitting the wheels, e-mail me at

Printing Specifications:

  • Time: 41 minutes (with 0.3mm layer height) - 1 hour 10 minutes (with 0.15mm layer height)
  • Weight: ~11g
  • Metres of Filament Needed: ~3.7m
  • Cost of Filament: ~$.45 CAD (going off an average of $35/kg)
  • Needs Supports: No
  • Needs Raft: No
  • Skirt Recommended: Yes

A timelapse of a successful Wheel print:

All content on this site is CC-BY-SA 4.0. Do with it what you will, but link back to this page, and if you publicly-release any content based on this page’s resources, be sure to license that content as CC-BY-SA 4.0, as well.

All resources on this site are provided for informational purposes only. Anything you do because of what you read on this site is at your own risk, and I am not responsible for whatever happens because you accessed this site.

CodeRcar is an open-source project, released AS-IS, with no warranty (expressed or implied).

Have fun; learn something; be safe.

Sincerely, Matthew Piercey - Owner of Bot-In-a-Box Educational Robotics