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A Printer That Can Build a House in 20 Hours

via theAtlanticCities:

Behrokh Khoshnevis, a professor of Industrial and Systems Engineering at the University of Southern California, has spent the last 15 years working on a machine that will “print” buildings. He’s still working on it, but in the TedTalk video below, you can see the prototype at work. Various nozzles and robots slide around on a giant grid of mobile bars and rails, mixing cement, laying electrical wire, and installing rebar. He calls the practice Contour Crafting.

I’ve watched three videos now discussing this project. I think this technology is the single most important next step for the world.

Extending shelter to all the people of the world (and revolutionizing the housing market and industry in the developed world) could jump start a whole new wave of human development.