We present an ongoing research project focused on the development of more efficient setups for cooperative multi-robot systems in 3D-printed construction. Early kinematic simulations of a mobile robotic cell prototype with two ceiling-mounted orbiting manipulators have provided new insights into 3D printing topology. An extrusion nozzle is mounted on each collaborative robot whose primary function is to match the extrusion path to the print contour while they move along a circular path. The challenge of setting up on site a semi-structured environment for cooperative multi-robot 3D printing led us to think up a new species of construction 3D printer.

We present a novel workflow for timber joinery robotics in low-rise building construction. A parametric 3D model that associates architectural design, structure geometry and robotic fabrication information was implemented using only CAD-based visual robot programming. Our case study is the design and manufacturing process of a two-story timber-framed dwelling. The main frames of the structure were assembled with mortise and tenon timber joints machined in glue-laminated timber using a 7-axis industrial robot in a wood company. This pioneering experience aims to apply timber framing robotics to social housing in emerging countries.