We've seen a few of these before, but I love Michael (nxtmike14) mini version of a Great Ball Contraption (GBC). There is something a little mesmerising about watching a little ball going aimlessly around a path. According to Michael, it can be made out of a 1.0 and probably a 2.0 kit (any chance of some building instructions Michael??) Michael has entered it into the NXTLog's 'Crazy Contraptions' contest which is coming up with some really great submisions.
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