I give demos with CAD and PDM software. For this purpose one of my colleagues had reverse-engineered his radio controlled car (and because he’s off course an uber-CAD-geek 
). I use the assembly of the electro motor for PDM demos. For a prospect I soon will have to visit they also would like to see how they can use other data such as photographs in combination with 3D data in PDM. So I asked my colleague to bring the car and I took a couple of shots of it with some ghetto studio stuff (paper and so on).
