Here is the animated model.
Sorry it is so small. I had to really shrink it down to fit the size limits of the gallery....
I do see a need to further brace the vertical pillars, and add them to the X axis rail...
The X axis does move well with one point of force at the center, however, I may go with dual drives just to prevent any torque...
Add the 5th axis as a lathe head and I am pretty close...
Or am I still way way way off from something that will work when built of quality materials and craftmanship?