It will be quite a while before I’m done with the house and back up and running, so I’m keeping up w/ this thread and learning. Hopefully, you guys will have this process trouble shot and someone will compile a step by step … hint hint… I doubt I will be able to glean the correct instructions from the 3 topics already in motion. So all the hope of the CNC free world is riding on your shoulders, but no pressure, no worries, you have my support and good wishes… I for one do not have the machinist ability to sort this out. Thanks for all the input and effort all of you are providing. The ball screw Z axis initiative shall succeed and the conquering heroes shall be acknowledged. Go forth young men and conquer. Jude