So for my specific project I only have one wheel. This wheel needs to go forward and backwards and I also need the wheel to go be able to go around in circles. For example, claptrap, http://fantendo.wikia.com/wiki/File:Claptrap_by_inkisitordesigner-d5zz0wx_(1).png, can go back and forth and can turn with just one wheel. I would like to know if there is a motor that can do this or is there something else that I can use to complete these commands. Thank you very much.