[DampRobot]

Only a few things, overall, it looks really good. I especially like the way you make the side panels (the ones that hold the wheels) non-unique parts, along with the detailed design of those sheet metal parts.

Someone with a bit more experience than me in sheet metal design would probably be better qualified to answer this than me, but could you make the chassis a bit more stiff in a few areas? I'm mainly looking at it being a large rectangle with braces only at the corners. I feel like it might have a tendency to turn from a nice right rectangle to a parallelogram.

Also, are you doing exact c-c with the wheel chains?

I'm digging the design overall. It looks like there's a lot of smart detailed design in that frame.