I have an assembly constrained to a 3-d spline with acoincident restraint.
There is a perpendicular plane restraint to keep it from swaying.
The problem is when I pull the assembly around the spline,occasionnally the
assembly will flip 180 degees. If I try to add another constraint,it warns me that the assembly is overconstrained. Anysuggestions?SolidworksMotion Studies

There is a perpendicular plane restraint to keep it from swaying.
The problem is when I pull the assembly around the spline,occasionnally the
assembly will flip 180 degees. If I try to add another constraint,it warns me that the assembly is overconstrained. Anysuggestions?SolidworksMotion Studies