MIT has added more materials that can be produced by 3D printing, to include not just plastics but also metal, and glass. Structures built with this system could be produced faster and less expensively than traditional construction methods allow, the researchers say.
The MIT researchers used their 3D prototype system to build the basic structure of the walls of a 50-foot-diameter, 12-foot-high dome — a project that was completed in less than 14 hours of “printing” time.Unlike typical 3D printing systems, most of which use some kind of an enclosed, fixed structure to support their nozzles and are limited to building objects that can fit within their overall enclosure, this free-moving system can construct an object of any size.
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