Rhino Treads and Bumpers

[AndyBare]

My suggestion is building the skeleton of your robot from 80-20 Aluminum. It works wonderfully with bracketing systems, and holds up well through contact. This picture kind of expresses what I'm trying to say. Bumpers and brackets are red. The diagram shows you how they brackets and screws connect. The rhino tread is blue. 80-20 and aluminum parts of rhino treads are white. Triangle brackets are gray. This isn't a CAD, but hopefully you can still find it useful, or at least get some ideas for what direction to head into with this.

The note of dimensions is to express that the 80-20 T's would support the L-bracket far enough over the treads so that the bumpers would cover the frame perimeter.

You can totally do something like this and incorporate different types of support beams into a non 80-20 framed robot (may even be lighter that way)