[Coach Norm]

Team 2468 used a PG71 motor with Tetrix 120 tooth and 40 tooth gears for a 3 to 1 reduction. We have an arm that has a 4" Vex wheel mounted on the end of it. From the edge of the wheel to the frame is 14". The arm is made 3/4" aluminum angle x 1/8" thick. It proved strong enough to push the bridge down or pick it up.



Edit:

See picture below.

You can see the tipper in action at the 16:07 mark of the following video on Ustream: http://www.ustream.tv/recorded/20856729