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    Home » Science » 3D printing reaches new heights with two-storey home

    3D printing reaches new heights with two-storey home

    A 3D printer is taking home building to a new level — literally.
    By Agency Staff13 January 2023
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    Evan Garcia/Reuters

    A 3D printer is taking home building to a new level — literally.

    The enormous printer weighing more than 12t is creating what is believed to be the first 3D-printed, two-storey home in the US.

    The machine steadily hums away as it extrudes layers of concrete to build the 370sq m 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.

    There are structural challenges, logistic challenges when we print a second-storey building

    “You can actually find a lot of 3D-printed buildings in many states,” Lok said. “One of the things about printing a second storey is you require, you know, the machine… And of course, there are other challenges: structural challenges, logistic challenges when we print a second-storey building.”

    The three-bedroom home with wooden framing is about halfway finished and is being sold to a family that wishes to remain anonymous, she said.

    The project is a two-year collaboration by Hannah, Peri 3D Construction and Cive, a construction engineering company.

    Hikmat Zerbe, Cive’s head of structural engineering, hopes the innovative technique can one day help more quickly and cheaply build multifamily homes.

    Evan Garcia/Reuters

    In addition, concrete can withstand the hurricanes, heavy storms and other severe weather in Texas that is becoming more frequent and severe due to climate change.

    And since the printer does all the heavy lifting, less workers are needed at the construction site.

    “Traditional construction, you know the rules, you know the game, you know the material properties, the material behaviour. In here, everything is new,” Zerbe said. “The material is new, although concrete is an old material in general, but 3D printing concrete is something new.”  — Evan Garcia, (c) 2023 Reuters

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