When I apply a a rotary motor to the input, the resulting animation does not represent what the system should do based on the design and mathematics of said system. There are three meshes (gear mates) which all appear to function correctly as individual components, but the dynamics are incorrect in the motion study. I've attached a screenshot of the system. The lowermost gear should be held fixed, while the pinion of the central mesh is the input. The output of the system is at the uppermost gear and should represent a speed reduction based on the math.