Fig. 1: iMASC-AM process.

A From a single resin vat, radical polymerization can be initiated through visible light (405 nm) irradiation to yield elastomeric, acrylate-dominant regions, while cationic and radical polymerizations can be initiated through UV light (365 nm) irradiation to yield stiff, epoxide-dominant domains. B Idealized schematic showing selective infusion of infusion material into the acrylate-dominant region of a printed multimaterial part.