“At its best it seems to lay brick around 5 times faster than a human can, but it requires masons to follow behind it to clean the joints and occasionally level the bricks, and an on-site technician to handle technical issues.”
Patents for bricklaying machines go back to 1899. Australia’s Hadrian has been in development since 2006 and has built the walls of three or four buildings. The best robot on the market can’t turn a corner and still needs masons to tidy up after it. A century of demos, and the trowel is still winning.