These are videos of 2 different kinds of brick laying robots. The first one is already in use and mostly does straight walls ( it doesn’t do corners, yet), and needs a human bricklayer to do things like point the joints and do corners. It lays regular “red brick” kind of bricks using regular mortar.
The second one is under development and has a prototype in operation. It is larger and builds an entire house from one corner of the home space. It looks to me like it uses cinderblocks and they are glued together with adhesive, not mortar. It does do corners. The video refers to it as “3D printing” the house. I suppose in a strict sense of the world it is doing “additive manufacture” but I’d call it more of a bricklayer than 3D printer. Still, it builds houses.
Speed is about 6 times the rate of human bricklayers. So things get done fast.
Now lots of folks will go all “panties in a bunch” about how this means nobody will have job laying brick anymore. Well, no. First off, to the extent it makes brick cheaper, a LOT more things will be built of brick. That is Jevon’s Paradox. Make things more efficient, you use more of them, not less. Next note that in the first case the bricklayers are still needed to point the mortar, load the bricks, adjust the robot, etc. etc. They just don’t need to place each and every brick by hand. In the second case, you have a robot operator, set-up the site laser guidance, and someone driving a forklift to keep it loaded. Frankly, I’d rather drive and set up a robot than spend my day lugging cinderblocks up a scaffolding.
I’m sure the fields of brick layer and building construction will be disrupted by these machines, but I’m pretty sure it will be a good disruption in the end. SAM – 2:12 video:
Then this whole home builder from Australia – 8 minutes: