From August 27 to September 1, the HEiKA Summer Science Academy 2023 took place at the Black Forest hotel “Zuflucht”. Interested master students had the opportunity to learn from Cluster PIs, leading experts in the field of 3D Materials and Applications, about topics ranging from new 3D printing strategies to optoelectronic devices, microscopy and spectroscopy, and hybrid organoid systems. In addition to the lectures and workshops, the students also had the chance to explore the Black Forest, share ideas, and network with their peers. Thank you to everyone who made this event possible, especially the lecturers and organizers.