How to build a complete house in 24 hours? A house with all the walls, the insulation, plumbing and electricity?
Using the robot technology invented by Dr Behrokh Khoshnevis at the University of Southern California in Los Angeles. It's called the Contour Crafting.

Berok (his little nickname) first created a small machine, a small robot able to create 3D models layer after layer. You draw your cup with sketchup for example, and the machine prints it in 3 dimensions.

That's already nice but starting from there, he has created a much bigger machine that builds a house the same way. It superimposes layers of a mix of gypsum and concrete, a liquid that dries very quickly, so quick that it's ready when the next layer arrives.

The purpose is to build his house entirely from his computer, but also to reduce the costs (half), to reduce the environmental waste and also facilitate the rehousing of the disaster victims after a catastrophe. In theory.


Source: University of Southern California', march 2005 and a video from Daily Planet.