Ballscrew articulation, has anybody had success?

Thank you Paul, I did spend a lot of time reading but as a person who has never had any experience using LinuxCNC I wasn't confident enough about the general direction I was headed in. With your input I can go ahead in this direction and learn more on my own. Thank you so much

Sanity check - if one put encoder not on ballscrew, but on swing axis itself and use servo driver with speed input - nothing need to be adjusted. Encoder output should be sent to controller of course. Servo should slightly overbuild for this setup,