Today, I remilled the apron extensions/ballnut holder for the Z axis. Here is the left side to which the ballnut attaches.
Then with the ballnut bolted on :
And finally mounted onto the saddle:
Lastly, the right side finished and attached:
Note the large indented cups on the outside of each extension. These will act as the pilots for the ballscrew covers. I just need to cut out a chip guard to seal the bottom and the small area exposed on the backside of the screw enclosures. With the ballscrew covers all in place, the screws should be well protected from chips and moisture. Finally, I'll get to try out my blast cabinet with some glass beads I picked up. I think I'll polish a couple of pieces and give the rest the blasted finish.
I am considering mounting my Hall effect home switches within the enclosure as well. They can be triggered by a magnet that I can embed into the framework of the lathe. Since there is almost a 1-1/4" difference between how far my 3 jaw and 4 jaw extend out, my home switches will have to adjust depending upon which chuck I am using. Will have to ponder that one for awhile