I've modeled a subway train with three cars (they're not the same object, but separated ones) and what I'm trying to do is to make the first car to follow a spline and the other two being pulled by the first one, just like a real train.
I've tried linking a dummy, linking one car to another but it doesn't work, since all the cars turn at a curve at the same time, looking like just a big wagon.
I read something about spineIK solvers, but I didn't understand what to do.
I would think (someone else correct me if I'm wrong) that you could just apply a path constraint to each of the cars separately, then offset each car in the path constraint panel so that they're just behind each other with a bit of space between them.
You might create a bones system, with the nodes at each of the connecting points of the cars. Then when the cars follow the path, they should react accordingly. There should be a simple way to do this, short of using the real physics of Reactor.
It was no bother, Igor. That's the beauty of these forums. Some days we give answers, some days we get them. There are so many ways to achieve the same result in Max, and I don't think anyone knows all of them.