[Paul E. Lathrop]

At the beginning of the season, some of the students on team 1033 worked on a prototype of a two sided ramp. Our chasis is 12 inches tall so the idea was to drop 2 pieces of 1/8 thickness diamond plate down to the ground using two pneumatic cylinders. We supported the sheets of diamond plate by welding support bars on the side of the sheet so that the plate wouldn't bend downwards.

If you scrap the arm idea you could go for the 6 ft height and if you do your trig right can actually make a ramp on one side with a 14 degree angle and a place to support two robots on the other.