ᐅ What do you think about 3D-printed houses?

Pinkiponk schrieb:

What do you think about houses built with a 3D printer?

See https://www.hausbau-forum.de/threads/mauern-mit-fbr-roboter-hadrian-x.39688 from three months ago

konibar schrieb:

Ultimately, it is a concrete house, but the necessary channels for piping and wiring still have to be milled in afterwards.

No, those are left out from the start. I wouldn’t call that a concrete similar to regular concrete, even if it may have comparable strength once hardened – but concrete includes aggregates like gravel, which can’t pass through a printer nozzle.

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https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/

11ant schrieb:

....
No, they are recessed right away.

Well,
yes and no:

The printer I saw in operation had a nozzle opening (flat nozzle) wide enough to print a full layer across the entire width. I estimate the feed rate to be about 2 cm/sec (0.8 inches/sec).
Of course, with this you cannot print recesses.

To print recesses, the nozzle opening obviously needs to be smaller than the finest resolution of the structures you want to print. For a resolution of, say, 1 cm (0.4 inches), you would have to run 15 passes to achieve a wall thickness of 15 cm (6 inches). This way, you could create simple recesses like socket holes or cable ducts—though only at the resolution/accuracy of the filament thickness.
With such a fine nozzle, the printer would then be occupied for several weeks just printing the walls.

Lintels and ceilings cannot be realized this way, of course. You cannot print on air.
Therefore, openings for windows and doors have to be cut out afterwards or everything must be assembled from smaller components.

At first glance, all of this sounds attractive, but it involves quite a few additional efforts.