I know this doesn't address the OP's original question, but to add on to what was said here
Quote:
Originally Posted by apalrd
Simbotics (1114): They had four wheel pods (two crab pods and two casters) each with a pneumatic piston. They would lift all of the pistons, then run into the platform. Sensors on each pod would lift it as it hit the platform.
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We had a similar solution, except it was just front and back instead of 4 independent modules like they did. We had 8 light sensors that we used to detect where the robot was relative to the platform and raised/lowered the modules accordingly. It worked great, but in practice the time that it took to raise the modules wasn't as fast as we had hoped (the goal was to be able to drive on without slowing down)
Check out our
Encore promo video from that year to see more details.
Again, that was a different challenge with only a single step to deal with.