Engineer Alex Le Roux designed and built a concrete 3D printer last year as a student at Baylor University. His ultimate goal was to 3D print a small house, and now, only a few months after he developed the second iteration of the printer, he's accomplished what he set out to do. Le Roux has informed 3DPrint.com that he has successfully built what he states is the first livable 3D printed structure in the United States. The 3D concrete printer, now called the Vesta, took a mere 24 hours to print the entire 8 x 5 x 7 foot structure, which was built from inexpensive cement. Read more at 3DPrint.com: https://3dprint.com/139022/vesta-3d-printed-tiny-house/