As cost goes down, 3-D printers begin to make an impression

Diego Porqueras' Deezmaker store in Pasadena, Calif., is a geeky version of Santa's workshop, brimming with action figures, chess pieces and jewelry. But instead of relying on elves, Porqueras has built his own one-man factory using 3-D printers capable of churning out plastic objects within a few hours. He sells the printers, which go for as little as $650, at the shop, which opened in September in a strip mall.

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