Looks good. Why did you stuff wood into the vertical electronics board supports? The aluminum tubing should be strong enough to hold an electronics board, especially if you add a cross brace.
Btw, H-drive describes 5 omniwheels in a H shape, and this is not a H-drive. I'm not sure what it would be called though (omnidrive?).
Good luck, and I hope to see a video of this moving soon!
