I have an animation of an exploded view/assembly animation that has a rotating screw following a spline into the assembly. I can get the screw to follow the spline path OR have it spin with a rotary motor, but not both. I need to keep the spline, if I could have a linear path, this would be easier, but this is not an option. Does anyone know how this can be accomplished? I tried setting up position with key points, then adding the rotary motor. Then I suppressed teh key/drag drop and used a rotary and linear. No luck.