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This may be an option for you Dave, depending on how deep you want to get into fabricating a solution:http://www.worldofward.com/rotarycontroller/There is a ready-made option for the controller board and display and they source a keyboard as well. You'll still need to do an enclosure and source a stepper motor and matching driver.I've no affiliation other than being a happy user of this controller after building one from parts to drive my 6" table. It works as advertised and did so "right off the bat".Charlie
There i s a very active thread over on https://www.homemodelenginemachinist.com/threads/arduino-rotary-table-for-dummies.26744/page-9#post-308995. This one uses Arduino, which is an extremely well supported micro controller. It should be a lot less expensive than Division Master or the Sherline controller.
Dave, I’ve had numerous Kwackers , World of Ward controllers over the past 10 years and they are great. I’m currently making one up now (just got back from the workshop!) for my Cowells lathe. Steve is a great guy, sells them for I think £45 made and ready to run! You then just need a keypad, driver and motor and you are ready to go! Wiring is simple and no hassle. If you are integrested, I can make a little video of wiring one up to show what you get from him and how you connect the rest of it up? No worries if you don’t think this would help. CheersChris