AM14U3 Kit Chassis Mods to traverse DEFENSES

[MrForbes]

We spend some time trying to figure out how to go over the DEFENSES, and finally came up with this. It seems to work so far, although we just got it running, and the chassis is not anywhere near it's final configuration, and there's not ball handling stuff on it. We intend to make a short robot, the electronics will be on the side near the front, the ball will go down the center of the robot (in one end, out the other).

The lower four wheels are mounted on aluminum brackets, we were very careful to keep the center to center distance for the belts just right, so it took a few days to perform the modifications.

What ideas have you come up with to deal with this?

https://www.youtube.com/watch?v=yWUq1fw4mCE