made it animate and the slider values follow the motion now
generated using ejs 4.2.7 load in MacOSX as the ejs4.3.3.2 didn't load in MacOSX.

the physics looks wrong though, see at the[img][/img]. i suspect  it is the inner ring that rotates in one direction, while the middle ring is coupled to inner ring and the outer ring is coupled to the middle ring.
what you are think?

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