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3-D printers step into mainstream

Jul 16, 2014 - The San Francisco Chronicle

Shoppers at the Emeryville Home Depot pushing carts laden with lumber and lightbulbs did doubletakes as they passed a 3-D printer churning out little plastic doodads.

"This is amazing," said Luis Rojas, 11. "I want one. I'd make a lot of stuff. I wanna be an architect, so making little houses would be cool."

His dad, Enrique Rojas, a contractor, was similarly entranced. "I could print models of designs for kitchens and bathrooms," he said.

In a step toward making 3-D printers m...