3D Printing Reaches New Heights With Two-Story Home

A 3D printer is taking home building to a new level -- literally. From a report: The enormous printer weighing more than 12 tons is creating what is believed to be the first 3D-printed, two-story home in the United States. The machine steadily hums away as it extrudes layers of concrete to build the 4,000-square-foot home in Houston. Construction will take a total of 330 hours of printing, said architect Leslie Lok, co-founder of design studio Hannah and designer of the home. "You can actually find a lot of 3D-printed buildings in many states," Lok said. "One of the things about printing a second story is you require, you know, the machine... And of course, there are other challenges: structural challenges, logistic challenges when we print a second-story building." The three-bedroom home with wooden framing is about halfway finished and is being sold to a family, who wish to remain anonymous, she said.

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