Drilling out a hole in the skull base has to be done with great precision and often takes many hours. It is an intervention that requires the maximum from a surgeon. Researchers from TU/e have therefore developed a surgery robot to take over this task. With sub-millimeter precision, the robot can automatically and safely mill a cavity of the desired shape and dimensions. Jordan Bos will receive his Ph.D. on 16 April for the robot he designed and built. The robot is expected to perform its first surgery within five years.