How about giving the naked cables a coat and upgrade them to bowden cables (i.e. introduce friction losses dependent on cable routing)
Then I tested the discretized cable flavor and I seldom came to something less usable. The performance and solver stability is rock bottom (if not less than that).
How about flushing it down and think about using the newly introduced FE parts for that purpose ? I.e. one for the cable and one for the coat that contact each other. Performance wise that should be much better (not to mention the creation process).
I also need someting like that but no need to have drum i only want making long or short the cable when the drum rolling. No need to cable wraps around multiple times. For example in this video i dont want the translational motion part . only want the roll pulley and make short ot long cable. Maybe wrapping virtually.. www.youtube.com/watch