hey guys, I'm new here, but I'm a tool maker in a rather big shop. we use auto cad lt and esprit. The esprit is AWSOME. all you need to do is ether draw your part inside the software or drag your model into it, pick a part or all of your drawing, tell it what you want to do, eg. milling or turning, and it will do the rest. It will even tell you pefered feeds and speeds depending on your material. I'm shure it's costley $$, but you might look in to it.