MIT is 3D printing functional robots that could walk right off the printer

MIT researchers just made a giant leap for robot-kind, by creating a working robot using 3D-printing. The breakthrough could lead to a world of ready-made machines that come off the production line needing only a motor and a battery. The initial prototype is tiny, but it demonstrates that a 3D printer with inkjet nozzles can print both liquid and solids, with a little help from UV light. MIT's Computer Science and Artificial Intelligence Lab (CSAIL) is pioneering the field of "printable hydraulics," which involves building liquid-filled pumps during the manufacturing process. Researchers used a commercially available 3D printer to create a robot made of both solids and liquids, for the first time in history.