Evidence receipt / prediction
Published · transcript-backedBrian Potter: prediction
27 Oct 2022 Dwarkesh Podcast Brian Potter - Future of Construction, Ugly Modernism, & Environmental Review
“I think that the value of 3D printing is basically entirely predicated on how successful they are at figuring out how to like deliver more components of the building using their system.”
Source trail
Everything needed to verify it.
- Speaker
- Brian Potter
- Attribution
- Verified speaker
- Claim type
- prediction
- Recorded
- 27 Oct 2022
- Publisher
- Dwarkesh Podcast
Transcript context
…Interesting. So why are you pessimistic about 3D printers? For construction, I mean. Yeah, for construction. Oh God, so many reasons. Not pessimistic, but just there's a lot of other interesting questions. I mean, so the big obvious one is like right now a 3D printer can basically print the walls of a building. That is a pretty small amount of the value in a building, right? It's maybe 7% or 8%, something like that. Probably not more than 10% of the value in a building. Because you're not printing the foundation, you're not printing like the overhead vertical, or the overhead spanning structure of the building. You're basically just printing the walls. You're not even really printing the second story walls that you have in multiple stories. I don't think they've quite figured that out yet. So it's a pretty small amount of value added to the building. It's frankly a task that is relatively easy to do by manual labor. It's really pretty easy for a crew to basically put up the structure of a house. This is kind of a recurring theme in mechanization or it goes back to what I was talking about to our previous lead. Where it takes a lot of mechanization and a lot of expensive equipment to replace what basically like two or three guys can do in a day or something like that. The economics of it are pretty brutal. So right now it produces a pretty small value. I think that the value of 3D printing is basically entirely predicated on how successful they are at figuring out how to like deliver more components of the building using their system. There are companies that are trying to do this. There's one that got funded not too long ago called Black Diamond, where they have this crazy system which is like a series of 3D printers that would act simultaneously, like each one building a separate house. Then as you progress, you switch out the print head for like a robot arm. Cause a 3D printer is basically like a robot arm with just a particular manipulator at the end, right? So they switch out their print head for like a robot arm and the robot arm goes and installs different other systems like the windows or the mechanical systems. So you can figure out how to do that reliably where your print head or your printing system is installing a large fraction of the value of the building. It's not clear to me that it's gonna be economic, but it obviously needs to reach that point. It's not obvious to me that they have gotten there yet. It's really quite hard to get a robot to do a lot of these tasks. For a lot of these players, it seems like they're actually moving away from that. I think in ICON is the biggest construction 3D printer company in the US, as far as I know. And as far as I know, they've moved away from trying to install lots of systems in their walls as they get printed. in ICON is the biggest construction 3D printer company in the US, as far as I know. And as far as I know, they've moved away from trying to install lots of systems in their walls as they get printed. They've kind of moved on to having that installed separately, which I think has made their job a little bit easier, but again, not quite, it's hard to see how the 3D printer can fulfill its promises if it can't do anything just beyond the vertical elements, whichare really, for most construction, quite cheap and simple to build.…
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