[EricH]

Originally Posted by Petey

Something to think about:

Can you build a robot in such a way that the trailer's wheels are always oriented like the robot's?

I don't think so. The contact is to be bumper-bumper instead of bumper-tongue (<R18>E) and the hitch is to be on the outside edge of the robot (<R18>D) and the the trailer must be easily removed after the match by removing its pin (<G36> and <R18>C).

It's possible, but it'll be pretty hard. You also have <R08> to consider, which includes the bumper perimeter.