I had the pleasure of working with David Airey from Logo Design Love. This is one of 2 animations I did with him. The first version just had the ball rolling at the beginning. After a little more thought I was able to come up with the "spinning vortex" assembling idea. I think the simplicity of it works.

Technical: All the pie wedges were parented to a null object. I applied an expression to the rotation that drives the rotation based on the circumference of the circle. So this allowed me to rotate the circle just by changing the position:
r = width/2;
c = 2*Math.PI*r+32;
R = 360/c * position[0];

Animate your logo here: spinmylogo.com

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