These Cute Backyard Houses Can Be Entirely 3D Printed

In their category of "World Changing Ideas," Fast Company shares an amazing look into 3D-printed backyard houses. "Inside a warehouse in Oakland, California, a 20-foot-high printer recently 3D-printed the shell of a tiny house—not only the walls and floor, but the ceiling and roof, and overhangs. The home took a total of 24 hours to print; similar homes will soon be trucked to backyards in nearby cities."