On all of the G0704 mills the Y slide needs to have a pocket cut into it. Often on the current mills the mounting surface that the X ball nut presses on needs to be enlarge slightly. You can also grind a little off the ends of the ball nut flange but this is a better way to fit it.

If you need a CNC kit for the G0704, PM-25, PM-30 or PM-940 email me at [email protected]
Thanks for watching
Dave