From what I have seen, they can "print" anything. There were a few machines doing their thing at Siggraph 2003. Amazing to watch, totally automated after being set up. The Tuperware corporation was using machines to do this very thing 5+ years ago. Although their machine I saw was right out of science fiction, it uses a polymer liquid and lasers to create 3D forms. Not sure if they use it anymore, it was pretty slow. *I'll be interested in seeing what is at this Siggraph 2004... AS

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