Based on the CoreXY concept and ideas from FABtotum to avoid crossing belts, I'm experimenting to see if I can get away with as few mounting-points for belts/pulleys as possible. This video shows that my prototype moves, as well as showing the CoreXY movements. Moving resistance feels very low, even if this is very simply built (no linear rollers/brass bearings, no attention made to precicion...). Next step: moving the parts using the motors :)

Update 1: https://www.youtube.com/watch?v=h4HQlSZROQ8
Update 2: https://www.youtube.com/watch?v=K6MRep9bwfs
Update BLOG: http://defcon.no/mech/flaws-in-my-simplified-corexy-idea/
Parts: http://www.thingiverse.com/thing:1418153

Ideas from: http://corexy.com/ http://www.fabtotum.com/ http://reprap.org/