In this sample, a vertical axes is linked to multiple axes at 90 degrees to the vertical axis. The horizontal rotations are a function of the vertical
rotation. The modeling process is straightforward. To clarify the geometric structure, each successive coordinate system is displaced by a small amount.
Reducing this amount to zero brings all objects to a central point.
The Z-axis of the differentialCS coordinate system defines the vertical axis.
... more on Design Patterns CA
Tran_Differential Manipulations