X-Y table has two X-axis handles so X lead screw is bushed at both ends. Y-axis is bushed only at the front, rear end of Y lead screw floats (not bushed) and does not extend beyond housing. I'm able to couple motor shaft to lead screws quite easily by removing any handle and using a suitable coupler. However, for the Y-axis, it's preferred to drive the screw at the rear instead of the front where the handle would normally be. Does this make any sense;
- Drill and tap rear of Y screw dead center (machine shop)
- Cut head off partially threaded cap bolt with matching size thread
- Screw bolt into rear of Y screw
- Support bolt using matching sleeve bearing (or self aligning bearing) in pillar block type support
- Couple motor shaft to bolt using flexible coupler if necessary