DOGBOT is a six wheeled all wheel drive mobile robot platform. The frame is constructed of 1/4 x 2 aluminum angle. The chain driven tires are from industrial hand trucks. I am currently using a relay H-Bridge to be replaced the H-Bridge Marvin Green of PARTS put together. The BASIC STAMP II decodes a SONY TV remote to move the DOGBOT FWD, REV, RIGHT, and LEFT. I am working on am arm and ir and usonic sensors for navigation around the back yard. I also have been working on a IR/Ultrasonic positioning system for my back yard so DOGBOT will know where it is. More pictures on my web site, look at the "IDTAT Robot pictures" http://www.pacifier.com/~awilson/ Email: awilson@pacifier.com