Hi, sounds like a big project. There are many things that need to be fixed. I have a late 2006 manual Tri-Power that I am in the early planning and procurement process of CNCing.
I plan on eliminating the y power feed during the conversion. The compromises made in order to make the y work are to limiting. Wonder what you think about this since you formerly had no power y. Actually, do you use the manual modes since you have CNC?
I made a DRO for the x axis that seems to work pretty good. Haven't done the others. Figured out the table rotates to much when changing x direction. Planning on making a removable plate that will be made to attach between the saddle and the tail stock base to extend the width to eliminate rotation. I will also be stiffening the fifth column and the horizontal plate to it and making a counter weight for the mill head.
I have some other silly ideas if anyone wants to hear them.