4D thinker; where do you have your controller, computer, keyboard and monitor? Also, do you have a source for collets, and cutters? As I live in Kansas City, I would like to come to Manhattan to visit your classroom. Do you allow that type of thing? If so, I think it would be very helpful for me to see your machines, and soak up some of the knowledge that you have regarding the probotix tools. Please let me know if I could do that. I have a steady stream of ideas and questions, but they come and go, guess I'll have to start writing them down. : )