Giant 3D printers could transform building trades ... and has a contract to print a total of six. Then it plans to take a printer down to Latin America to build 50 low-cost homes there.

The house is made by a 3D printer that prints layers of concrete. The project is a two-year collaboration between engineering, design and building firms, and the builders hope that this innovation ...

NARRATOR: It's crunch time for the 3D crew. And who's going to take home the coveted, and totally pointless, prize of, eh… most properties? Two cubes high-five as they prepare to compete.