Allow me to wonder if you have ever built something like this or any motion controls. All sorts of things get in the way.Allow me to rephrase. .
What are mech and electric time constants, and this whole z domain thing between the analog world and the digital word just for starts.
I understand that it seems straightforward and so logical. Have been there it that thinking and so sure I could do it.
Jump in and join .. the water is maybe deeper than it appears and you will never know until you try.
Build something and test it.
Have you even done a usable DRO or a basic high response PID servo in a cheapo controller?
It looks so easy until you do it and I one thousand percent understated that thinking.
Lord knows I thought all this cnc and servo stuff would be simple and I just needed higher chips speeds, more processing power and faster sampling. That was 1973.