The invention relates to a medical robot (R) and a method for meeting the performance requirements of a medical robot (R). The robot (R) comprises several axes (1-6) and a controller (17). A medical tool (21 -24) is fixed to a fixing device (18) ON the robot (R) and the working range (30) of the robot (R) is set by the controller (17) in particular with safe techniques such that the robot (R) meets the performance requirements of the medical tool (21-24).