Sorry if this is a repost, the golem project allows computers to design robots which are then printed with a 3d printer. Also on one of there pics instead of using a support material they use a gridlike patten of plastic, which apparently let the objects be grabbed easerly.
The Golem Project
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www.demo.cs.brandeis.edu]
I like this idea better than a seperate material.i surpose it depends how fine the grid is , so the objects dont need sanding down.
NoZ
p.s With all the great strides being made and the possiblity of circuts and possible a manipulater, how good would it be to have the whole process automated.