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3D printing a house (feddit.dk)
submitted 2 months ago by to c/3dprinting@lemmy.world
70 comments fedilink hide all child comments
 

Source (in Danish): https://www.dr.dk/nyheder/indland/poelset-op-i-beton-nu-staar-europas-stoerste-3d-printede-byggeri-klar

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[–] 4 points 2 months ago (11 children)

Can anyone tell me now this compares in efficiency to traditional building? It looks like a lot of setup

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  • [–] [S] 3 points 2 months ago (10 children)

    Not sure about speed but I imagine it could be pretty speedy, if for no other reason than the fact that it can run with much fewer workers and probably also running during the night. I mean even if it was half as slow as manual labour, if it ran for 24 hours, it would still be faster overall.

    But another point is that it uses much less material, 70% less according to the article. I suppose that helps with costs and CO2 emissions.

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  • [–] 4 points 2 months ago* (last edited 2 months ago)

    That makes sense. 70% less material is a staggering amount, that would probably offset if it ran on literal coal and steam. Maybe. That's hyperbolic but you get what I was thinking of.

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  • [–] 4 points 2 months ago (8 children)

    If you're switching to concrete, emissions will be worse than pretty much anything else you could use. Concrete is already responsible for some 8-12% of all global CO2 emissions.

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  • [–] [S] 1 point 2 months ago (7 children)

    What do you mean switching? Think this is more about using less concrete than stopping to use it entirely. That also helps, but yea it's a problem.

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  • [–] 3 points 2 months ago (6 children)

    Most houses around these parts are made of wood, not concrete.

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  • [–] [S] 3 points 2 months ago* (4 children)

    In Denmark it's usually bricks (very common and traditional) or other stone like materials or concrete. Never understood why there is this difference across the world in how houses are usually built, but wood seems a very... Temporary material for something like a house? I've lived in buildings from the 1910s, I can't imagine anything made of wood lasting that long.

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  • [–] 4 points 2 months ago

    My house is wood and was built in 1923.

    Houses are made of wood in the US because we didn't chop down our forests in the 1500s. European houses generally fall into the category of 1000+ year old stone or modern brick

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