[mwibbels]

In addition to the comments that have already been made. If I were reviewing the CAD with our guys - we would be looking to:
1. Use the members that join the left wheel module with the right wheel module to provide structure/support for the wheel modules themselves- you can see the cuts and joining holes in the 177 images that Akash posted. With a couple bends, like Roy mentioned, or a piece of angled aluminum joined to your side plates, you can tie into the cross tubes, and everything will stay a lot more solid and square.
2. Make the side plates as close together as possible while enabling chain maintenance.
3. Increase the number of standoffs between the plates - especially around the wheels as the side loading on the frame will be highest close to the wheel that is on the ground.
4. Either support the outboard end of axle out of the vexpro transmission or analyze its ability to withstand the cantilevered loading. I have not analyzed the vexpro transmission (so it may be fine in this application), but we generally avoid cantilevered drive members for our bot if we haven't analyzed or prototyped the system with the cantilevered loading.

In general - it is looking really neat - looking forward to seeing some images of the KleinBOTS' machine this year!