A physics-based bricklaying robot, built to BIM tolerance
A mobile gantry robot laying a real UK-terrace facade - three structural arches, judged the same way a site inspection would: every brick against the blueprint, live rigid-body physics underneath, so a careless placement can topple the wall.
Pick a case
Every card below is a precomputed replay - a different wall size, facade, or baseline policy, scored the same way: every brick within BIM ±3 mm tolerance, minimal waste, live physics underneath. Or paint your own grid.
Small wall
A 4×4 wall, fully within the arm's reach - the baseline placement task.
watch replay →Learning to move
mobile robot8×5 - wider than the robot's ~500mm reach, so it has to walk to finish.
watch replay →Zero-shot generalization
mobile robot17×8 (140 bricks) - far beyond any curriculum rung the policy trained on.
watch replay →UK terrace
structural archesA semicircular window, a segmental door, and a jack-arched window - three real structural arches on one facade.
watch replay →UK terrace (classic)
100% fillTwo round-arched windows flank a segmental door - the same facade, jack-free. robot18 aces it: 100% fill, every ring struck and standing.
watch replay →Colonial facade
image → planA VLM-perceived elevation from a photograph, tiled into 13 buildable panels around five openings.
watch replay →