The research group of Paolo Ermanni at the Composite Materials and Adaptive Structures (CMASLab) has investigated aerodynamically efficient aircraft wings using compliant structures, so called morphing wings, for the last 12 years. In this context, the Master’s student Leo Baumann, in collaboration with the ETH spin-off 9T Labs, has investigated the possibility to 3D print lightweight and selectively compliant composite structures. With the supervision of the doctoral students Dominic Keidel and