In the framework of the 15th EXCITE Summer School in Biomedical Imaging which took place in Zürich on 6-17 September 2021, we were pleased to host 8 students at the beamline for a hands-on session. During this practical on “Synchrotron based X-ray tomographic microscopy”, the students had the chance to see and learn about the beamline infrastructure, scan a few test samples, reconstruct the tomographic volumes and discuss different aspects of tomographic microscopy at a synchrotron.