I'm looking to add a 4th axis table to my recently acquired Brother. My current plan is to use it only for positioning. I'm fine with getting a used Haas or Yuasa rotary with its own controller and just triggering it using available M Codes, but I'm wondering if anyone has any experience integrating a 4th axis to a Brother of this age. It would be nice to control the rotary off the machine's control rather than a stand alone controller and I'm fine with taking the time to hook it all up. I guess my question is would I just need to get another Sanyo Denki Servo Amp and somehow wire this to the Yuasa or Haas rotary? Can this even be done? Any info would be great. Thanks guys.