SMaLL is capable of creating unique structures with mechanically and chemically distinct
regions. By using tunable, visible wavelength photoswitches, in combination with orthogonal
crosslinking reactions, a single resin formulation can be employed for the facile, one-step
printing of complex, bioinspired structures. The fabrication of soft joints and brick-and-motar
architectures showcase the utility of SMaLL for printing all-polymer composites with well-defined
regions for different mechanical and chemical properties.