3d model inspired by the Huge robot participating in battlebots.
Wheels and weapon bar spin freely!
Model designed with the assumption your printer can handle 0.2mm tolerances.
If you're unsure try this.
Print the body parts with the wheel side down.
Make sure you only create supports from the build-plate. In cura the setting can be found under 'Support - Support Placement', set it to 'touching buildplate'. If you don't the wheels wont turn probably.