ServoBot is an four wheel drived joystick operated robot which I put together with parts left over from other electronic construction projects. It is controlled by an pre-programmed Basic stamp and powered from two recharchable battery packs for the four servos and a 9v battery for the computer. It has a small gripper, yet without the ability too close and open, attached by it's side to a dc motor gearbox. It costs about $150 and took me about one week to build.