LEGO is very closed source. I'm fixing that with my http://bitbeam.org http://bitbeam.org project. It's an open source hardware Lego Technic compatible building

LEGO is very closed source. I'm fixing that with my http://bitbeam.org http://bitbeam.org project. It's an open source hardware Lego Technic compatible building toy that you can manufacture yourself. (I lasercut my bitbeams at TechShop in San Francisco.) My long term plan is to make a bitbeam-based CNC milling machine that can make more beams. I won't just sell the "bricks", I'll open source and sell the machines that make the bricks. Opening up the manufacturing process is something I suspect LEGO would never do. Also, I'd like to see a fully open source equivalent to Mindstorms - Arduino for the electronics and Bitbeam for the mechanics.