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MIT’s giant mobile 3D printer can build a building in 14 hours, and some day it may be headed to Mars

MIT’s giant mobile 3D printer can build a building in 14 hours, and some day it may be headed to Mars

At first glance, the Digital Construction Platform looks as awkward as its name. A nozzle is attached to the end of a pair of robotic arms atop a rover-like vehicle outfitted with tank treads. Then there’s a flatbed trailer attached to the back, with two big metal tanks strapped to its top. The system is actually a giant, mobile 3D printer,...