Maybe that was considered a dumb question.... Just looking for tips.
I think I'll do something like turn down a pointed transfer punch that will fit into the lead screw bearing on the head stock end. I'll mount my Ball Screw mounts to the carrage and slide it up to the transfer punch to mark the center of that bearing. Once I machine the ball screw mount, I could put a transfer punch in it, then mark the rear mount.
That should get me pretty close. I have oversize holes in the carrage mount and the fixed end mount so I can fine tune if I need to.
Honestly, with as much flex and run out on the factory lead screw I can't see where it really has to be "that" precise, although the more precise the longer it should live.
My X Axis is only about 10" long. I ought to be able to leave the floating end totally floating without a bearing correct? Just have my fixed end bearings and ball screw?