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The Makerbot printers range around the $2000 mark, and I think it's about $50 per spool of the plastic printing material. 3-D printing of metal parts is possible right now with EXTREMELY expensive printers that use layer sintering of powdered metals. Not sure how far that particular method has come though.
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"If you carry a gun, people will call you paranoid. That's ridiculous. If I have a gun, what in the hell do I have to be paranoid for." - Clint Smith
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