pic: The Mountain Dewbot - 2

Here’s a side picture of the tank tread drivetrain we used on the Mountain Dewbot. Although we (my father and myself) built over 95% of the robot in our house, we did have a few CNC parts. The main drive sprockets which power the chain were a sandwich of two pieces of 0.125" CNC sheet metal, with 0.5" HDPE in between them. For every other axle, we used roller blade wheels on our bogies. The tank tread itself is actually snowmobile treads cut down the middle into two.

And yes, the Mountain Dew has green and red cold cathode tubes behind it, and glows quite nicely at night!