back at it

So I finally got around to taking a picture of the 2 H-bridges used to power the algorithmic test bed motors. They are just simple H-Bridges powered by two 9 Volt DC batteries until I get a better battery for the whole shebang. You can find a schematic for it here.
See below for some pictures....

Also, below is a movie I made of the tank chassis rolling down a hill (driveway) to test if the friction of the axles needs to be modified.