Welding winches and hydraulics

[BigPapaJett]

I spend a very large amount of time in Fearless building and learning new and interesting ways of making cool contraptions that impress other players and what not but every time I try to use my adv. duplicator on something like an axis or winch or whatever it is, when I weld them together to dupe them, the dupe pastes frozen and without the winch and axis so the winch no longer works and it's just a frozen together prop. Unfreezing the props do not work and adding new winches and hydraulics dont seem to help either.

I know this may sound confusing but all I wish to know is how to duplicate a build that has hydraulics, axis, winches, etc and still be able to use them. It just has never seemed to work for me. Any suggestions would be much appreciated and sorry if this seemed kind of confusing.