Here are some of my measurements from the robot with the barb on it. Kirk measured out the new design and the new robot is 11" long and 6 1/4" wide with the plow.

Hey everyone, here's a google sketchup file of the board to maybe help with some rough calculations. I'll bring with me tomorrow as well.
Sketchup

Hey everybody, if you need to figure out some robot movements at home, maybe these calculations will help.

Thanks,
Jeff