Hi,
     I want to achieve a composite rotational motion of a geometric body, 
as follows
Motion 1: Rotate at a speed of w1 rad/s, with the rotation axis being the 
z-axis
Motion 2: Rotate at a speed of w2 rad/s, with a rotation vector of [1 * cos 
(w1 * time), 1 * sin (w1 * time), 0], and an action point of [0, 0, 5], as 
shown in attached figure.
[image: rotating_Chute.png]


However, the following issues were encountered:
1. After using DEMTracker to track geometry, even if I don't add any 
motion, the geometry will continue to drop down. How can I fix the geometry?
2. How to achieve the composite rotational motion mentioned above?

Best regards,
Wenxuan Xu

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