Italy's WASP have been testing their Big Delta outdoor 3D printer by trying to print a building out of soil and straw. They have faced and solved a number of problems while trying to print the vase-shaped building, the biggest one being the correct extrusion of the different materials. The Big Delta printer is around 40 feet tall and is currently capable of printing large outdoor structures out of clay. With the printer, WASP hopes to be able to 3D print buildings in 3rd world countries.
* 3D printing is a technology that is constantly evolving. In the near future, 3D Printers may be able to print buildings and other types of important things.