Economy

Prototype of the Day: A Printer That Can Build a House in 20 Hours

Maybe it could even build structures on Mars.

The machine takeover continues, and the next humans to lose their jobs may well be construction workers.

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.