[EricH]

Originally Posted by Teched3

If I remember the game correctly, WPI (Team 190) had a great platform climber, went around a goal obstruction, and hung on a bar, all autonomously.

They went up the 2" stairs, and intentionally built narrow to go around the goal. I remember that part of their robot was a piece of laminated paper to reach over a line and "straddle" it so they'd be in position for the stairs.

I might try 330's approach: oversized rear pneumatic tires (12") with an angled front and 6" wheels to lead up the step.

Tank tracks: Outback Manufacturing has a kit for those, but most teams make their own with varying degrees of success (the Triplets in 2006) and unsuccess (any robot that throws more than one or two in a season). They'll work for stairs, but I wouldn't recommend them for flat floors necessarily.