The focus of this workshop was deep investigation of material making and grading as well as bridging material properties to their architectural performance. We worked with recycled glass, cellulose, bioplastics and living bacteria to explore more novel and complex 3D-print-based materialisation processes. How can we identify and assess material behaviour, direct it via grading and robotic printing processes, and incorporate it into the design of architectural elements? We have investigated material specification as means to integrate and exploit particular material properties within the design process, sensing techniques to register material performance across the making, fabrication and curing process, and have developed critical understanding of the relationship between material deposition and robotic fabrication workflows.