Re: Ball Screw Upgrade Timing
I'm going to have to disagree with the guys above. My mill is CNC but still has the handles. I can run as full manual, 2 axis CNC with manual quill, or 3 or 4 axis CNC. When running full manual, I just lay my hand on the axis handwheel that I'm not turning. That's enough to keep it from back driving the ball screws, it really doesn't try to do that anyway. I really like the option of running manual for some stuff and use the 2 axis with manual quill for a lot of jobs. It's really nice to have 0 backlash from the ball screws when manual milling, allows you to make climb cuts without any problems.
Jim Dawson
Sandy, Oregon, USA