LEGO “Great Ball Contraption” using 20 modules!

[youtube http://www.youtube.com?v=rWd3vgLaA_M]

Rube Goldberg contraptions are built every day, but this is a huge lego build, using computer controlled (well the lego equivalents)….  Pneumatic, screw drives, and a whole host of other devices…

It makes me want to go out and buy legos!