To remedy the housing crisis, as well as the increasing demand for economical and sustainably-produced living spaces, many architects are experimenting with 3D printing. One such designer is Ma Yihe, the owner of the private firm WinSun. According to BBC News, WinSun managed to produce 10 full-sized, detached single-story houses in just ONE day – a monumental achievement. Based in China, the company used four 10m x 6.6m printers to spray a mixture of cement and construction waste to build the walls, layer by layer. The energy-efficient buildings, as reported by Xinhua news agency, can be produced for as little as $5,000 due to the lack of manual labor and cheap (as well as recycled) materials.