[Specialagentjim]

Side Plate
One thought is on the plate where the sprocket is. Trying to remove that plate in the heat of competition from the robot would be especially difficult with the holes for the screws to mount to the frame where they are (imagine trying to get a screwdriver down there during finals when a gear shears). Flip the plate around and have the frame mounting screws on the outside.

Motor Position
Its a bit scary to see the motor so high on a thin piece of metal sticking up without any support. A solid whack from a random robot or team member and that could potentially bend just out of interfacing with the gear. Possibly consider moving the motors lower in the design and centralizing it between cross supports (I think this may have been touched on earlier).