This tutorial on DMU (Digital Mock-up) kinematics of a rotor with eight blades and casing helps the engineering students and working professionals to know completely the procedure involved in the CATIA assembly kinematics with complete procedure to animate the assembly. In the process of learning this CATIA DMU kinematics , the viewers will know how to open the DMU kinematics and exact procedure to simulate or animate the bladed rotor with in the casing. They will also know about how to do simulation in a loop…. The rotor will be continuously rotating inside the casing …once clockwise and once anticlockwise…in the way we have given commands.