Comment on 3D printing a house
AnyOldName3@lemmy.world 21 hours ago
The problem with this kind of innovation is that it’s improving what’s already one of the fastest and easiest parts of building a house. Digging foundations, plastering the walls, doing the plumbing, doing the electrics and laying the flooring can all individually take longer than the bricklaying, and are much harder to automate.
It’s like they forgot precast exists and that there’s a reason you don’t see it used in houses.
bobslaede@feddit.dk 20 hours ago
Guessing you didnt read it, because its in danish.
The article specifically mentions that this technique uses 30% of the material that would have been used for precast.
rollerbang@lemmy.world 20 hours ago
But what does that mean for strength? I also see surprisingly little “armouring”. Not sure how that’s called in English - the metal wires in-between.
runner_g@piefed.blahaj.zone 19 hours ago
I’m not sure about this company but there’s one in the US that has an embedded nozzle laying down steel cabling inside each concrete bead.
SaveTheTuaHawk@lemmy.ca 19 hours ago
Rebar. Yes, there is no rebar and these houses are cracking and falling apart.
bobslaede@feddit.dk 19 hours ago
I’m just guessing, but it is probably reinforced with fiberglass or a similar fibers in the cement.