Comment on How 3D Printing Will Save American ManufacturingparentComments−pittsburghOP14yI believe you're thinking of this: http://www.youtube.com/watch?v=EfbhdZKPHroAlso related: http://inhabitat.com/3-d-printer-creates-entire-buildings-fr...
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I believe you're thinking of this: http://www.youtube.com/watch?v=EfbhdZKPHro
Also related: http://inhabitat.com/3-d-printer-creates-entire-buildings-fr...