This year, different research groups of the Cluster 3DMM2O offered again a variety of workshops for young female students as part of the Girls’Day 2023. At the IMSEAM of Heidelberg University, the students 3D printed materials on the micro and nanometer scale, examined different biological samples with a Scanning Electron Microscope (SEM) and experimented with proteins. They were supervised by the groups of PIs Franziska Thomas, Eva Blasco and Rasmus Schröder. The girls also learned about 3D printing at the KIT and got hands-on experience on how to get from an idea to the final product.