I was just wondering if anybody has a Jet JVM-830 knee mill that they have converted to cnc. I picked one up from a guy about 2 months ago for 200 bucks. It needs a little attention but it was well worth it. I am going to be replacing both the X and Y lead screws with ball screws, because the screws and nuts are very worn and allow slop in the middle of the screw, but at the end it is so tight that it takes 2 hands to turn the wheels. If anybody has any advice on what size motors to use that would be useful. I was looking at these servo motors, which just need encoders. I believe that they are the same ones that lowcostcncretrofits.com sells, but without encoders. -Adam