I've attached the contraint to my ball object, so the goal I need to be a point on the wire object, but I only seem to able to select the ball from the pull down. Do I need some sort of expression in the goal so it locks to the last point on my wire chain?
I got a bit further with it, using the reference and have now managed to attach the ball to the end of the wire using a spring constraint. Now if I turn the ball into a RBD object, regardless of settings, the rope doesn't appear to able to take the weight of the ball - even if its got the mass of a gnat!