I played with your file, and came up with this, using wire parameters and a look at constraint. Click play in the max file or scrub the bar to see it in action (or look at the example avi). I'm pretty sure that's how you intended it to work? http://www.vigville.com/forum_images/example01.zip (<-3dsmax 2009 file)…
Ok Im getting lost in the process. Im probably trying to over analyze, but this is frustating the hell out of me. The tut relies on linking subobjects together which I cannot since it needs to be boned. It also assumes universals at both ends with a telescoping action. No. One universal with a dogbone (pin that slides in…