My character in this project was a robot arm. The robot arm I designed is flexible enough to capture any object. I've put in control to control the varying aspects of a robot arm. Bells implemented: 1- I've implemented the Animate control. Click on the Animate menu and see if for yourself! 2- I've implemented 3 light sources with the required to enable/disable any of them. Just click on the Light menu and enable/disable any of the light sources and enjoy the scene. All my implementaion was in mymodel.cpp (which replaced sample.cpp), modelerui.cxx and modelerapp.cpp.