Very nice, thanks for the additional clarity! Depending on robot design, you may find your frame naturally in the middle (ish) of the bumpers instead of along one edge. This year, our frame was in the bottom third of our bumpers, but we had a little weight to spare, and put some vertical frame members in the corner as well. This gave us some additional support AND allowed us to build in handles to carry it with
Again, very nice design, thanks for sharing!