This is my CNC machine that I designed. This is what I like to call a fully intelligent model. It is Sketchy Physics compatible. Each and every part on this model is a component. I tried to design this machine out of as many like and simple parts as possible. By utilizing Sketchup components, I can create the same part, use it in the model, and then when I change it, my changes are affected everywhere I need them. I have built this machine, and it works in real life. See link below for video.