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Can I define a rotation axis for a 3d object then set a rotation amount for animation? I will duplicate the objects than set them at different orientations and all will rotate about the defined axis simultaneously at a certain angle amount and speed.

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    $\begingroup$ Maybe use an Empty and rotate around that? (I'm no animation expert, but that would be my first thought!) $\endgroup$
    – John Eason
    Nov 17, 2022 at 23:46

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i would use a copy rotation constraint for that.

  1. create an object, keyframe a rotation e.g. i keyframed z rotation at frame 1 and 60 with values 0 and 360, then in timeline press shift-E -> linear extrapolation to make it rotate forever

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  1. now copy that object, delete all keyframe and add "object constraint" copy rotation:

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with these settings:

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now you still can move and rotate that object as you like:

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and then just copy this object as often as you like:

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