A 3-D Printer Made This Home.

• Position: TECHNOLOGY - Brief article

Soon, you might be able to print a house almost as easily as printing your homework. The world's first fully livable 3-D-printed home was recently unveiled New Story, a San Francisco charity that will mass-produce the two-bedroom homes for people in poor countries. How do you print a house? Using a preloaded floor plan, the printer produces layers of concrete that keep their precise shape while hardening. Then, workers install windows, a wooden roof, plumbing, and wiring. (The company hopes to eventually develop robots and drones to produce and install these parts.) The process takes less than 24 hours and costs about $4,000-weeks faster and...