Looks good…is the second robot above 12", or will you have one robot over 12" and one over 4" ? I also can’t tell from the pictures, what is the ramp surface made of?
How will you get the second robot to stay on your ramp. I know that some robots have a sort of “pin” that locks the wheels after the power is cut however, many robots do not and will fall when the power is cut.
Another question: Are you planning on harboring three robots on your ramp? 
Thanx,
This is just a “proof of concept” prototype. The competition bot will have one on each side holding 2 robots 13 inches high. The material is an aluminum mesh with crossbars underneath it.
I’ll ask you the same question that i asked Ary.
What keeps robots from falling onto your electronics, completely destorying your beautiful ramp robot?
and question number two.
How are you deploying those bad boys?