Three-dimensional printers make manufacturing possible at home. Could they spell the end of mass production?
What is 3-D printing?
It's a revolutionary manufacturing process in which the design for physical objects, from toys to jewelry to machine parts, can be digitally transmitted to a device that makes them out of plastic, metal, or ceramic materials. Once the stuff of science fiction, 3-D printers have rapidly evolved in recent years, becoming smaller, faster and cheaper. A basic, microwave-size 3-D printer costs less than $1,000. Tonight Show host Jay Leno uses a $30,000 device to print hard-to-find parts for his collection of classic cars.