Spatial Stiffness Programming in Single‐Filament Material Extrusion Through Data‐Driven Thermal Foaming
Material‐extrusion printing of variable‐stiffness structures typically relies on multi‐material architectures, which often suffer from poor interfacial bonding, increased fabrication time, material waste, and complex tool‐change operations. Here, we develop a data‐driven manufacturing framework that exploits the esta...