A 3-D printer squirts small amounts of liquid plastic that harden into 3 dimensional shapes.

A new, large machine squeezes a wide ribbon of concrete instead of plastic as it moves along, back and forth to build walls of concrete. Like building a sand castle at the beach on a larger scale and using concrete instead of wet sand. As the concrete hardens the wall can support loads that become the walls of a building. The walls can be straight like conventional buildings or curved to give more strength and to look better. This is a revolutional, novel way to build structures.

COBOD, Construction Of Buildings On Demand is a company that is producing ARTS for Autonomous Robotic Construction System. See: https://cobod.com/

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