This is my robotic air cannon i built from IFI Robotics parts. Have questions, just ask.
New as of 8/10/2011: The drive assembly is being taken apart to have my own custom tank tracks to be the new drive system. Due to current lack of funds, parts are being purchased/made as more funds come in, like I said, the custom tank tracks need custom parts to function (i.e. belt tension adjusters, hubs, etc.).