Hello World with a LEGO robot

How do you say hello with a customized LEGO robot? It's what this B3ta forum user has done. Built from scratch, the DIY Lego printer has been connected to an Apple Mac. The creator wishes to clarify that this has nothing to do with Mindstorms and that he built it all by himself with electronic parts, motors, sensors, a printer driver and a USB interface. If you also want to have fun with LEGO to build unusual prototypes, RobotShop has everything you need in LEGO. http://www.youtube.com/watch?v=zX09WnGU6ZY