The first 3D-printed house made with dirt. The 3D-printed house took 60 cubic meters of natural material and 200 hours to build An Italian architecture studio and 3D printing company have teamed up to create the first 3D-printed house made from dirt. The environmentally friendly place took just 200 hours to complete. It has a stout shape and curved walls that look remarkably like a sea urchin. The...