I have created a basic roll cage for a project I'm working on, the roll cage is made from splines. I played around with paths and shapes and had some fun before building the cage of splines. However, Once I built the cage, attached all the splines and welded all the vertex's, 3dsmax doesn't allow me to use the cage of splines as a path. I'm using a basic circle spline as a shape. Any help would be greatly appreciated.