RIVERHEAD, N.Y. – SQ4D Inc., announced today that its robotic construction system has built the largest permitted 3D-printed home in the world, using less than $6,000 in materials. The Patchogue, N.Y.-based company’s Autonomous Robotic Construction System (ARCS) constructed a 1,900-square-foot home, taking 48 hours of print time over an eight-day period, the company…