An idea on a better tensioner for a variable load (different heads). Along with a usual tensioner, it has hooks for rubber bands. You can adjust rubber bands number until tensioner can hold it with the minimum force. I have quickly tested it on a twin collective; it seems to work. First prints show that 40MM diameter allows for a much stronger frame, and I’ve been able to fit a cable channel in it! Will finish printing the first prototype in a couple of days.