Europe's biggest 3D-printed building rises in just 140 hours | Hacker News Reader

Europe's biggest 3D-printed building rises in just 140 hours

newatlas.com

33 pointsBrajeshwar9 comments

This is interesting, however, the "140 hours" part misses the foundation. The "printer" is laid on flat, nicely prepped ground, and is essentially just putting down walls. The foundation didn't take 140 hours to make, the concrete doesn't even have time to cure enough to bear load in 140 hours.

3D printing "solves" the easiest part of building. It doesn't mean the tech is useless, I guess it offers some freedom concrete blocks don't have, but it is far from a game changer.

It reminds me of when I saw a multistorey parking lot being built next to where I worked. For a couple of months, it looked like nothing happened. I saw people working, but nothing came out of the ground except for a small concrete tower which became the main staircase. And then a few trucks arrived with cranes and concrete panels and after a couple of days, the parking lot was complete, except for finishing (paint, lighting, ...), which took another couple of weeks.

So, while impressive, the "wall building" part of construction didn't take long.

Yeah "just" a 140 hour concrete pour so to speak, but the shapes are cool and the people attending didn't seem o be busting ass too hard

But it can't be concrete because there's no rebar etc.?

Curious, what about resistance to earthquakes?

The region where I'm from is at high risk, so it's common knowledge that you want quite a bit of (steel?) mesh to help the concrete building withstand earthquakes, but I see none here.

The structure also looks like it has big empty walls, are those empty just for pipes and whatnot, or is that going to be filled? I don't see filling in the video so I assume it's not going to be filled.

Still, cool video.

A lot of places, including Germany, the country in which this thing was build, as well as most of Europe, don't see any real earthquakes.

https://en.wikipedia.org/wiki/List_of_earthquakes_in_Germany

But like the earth moves naturally with the ebb and flow of seasons and eras duuuuude

Like freeze/thaw, groundwater levels, water infiltration and freezing, weird loading, etc.

Possibly all the curves and waves reinforce it which would be huge if you could get rid of rodbusters no?

[dupe]

Some more discussion: https://news.ycombinator.com/item?id=39625684

I mean I have seen a house framed in a day. How many days were spent "finishing" the house? What about when I want to move a wall and remodel? Also they try to make it sound like there are no windows because this is a data center but the truth is windows and openings in the wall slow this build process down alot.

Framed? As in wooden? We don't really build houses like that in Europe. This is much closer to what we consider proper house while being much quicker to construct.

Inner finishing and thin interior walls are very often done by the final owner to their own liking so it's sometimes not considered part of the construction itself. We call it "shell and core".

There are lots of timber framed houses being constructed in Europe. I guess it depends on local resources. In pretty much all of Northern Europe it is very common to build in timber frame or log.

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