How to input atrractor point from series

[saripuspita12345]

Hi! I have a problem. this is my group model. We use series to open and close the membrane, and by far we haven’t find the way to input atrractor point to our model. All elements of this model still opening and closing at the same time. We want to open the membrane gradually. These are the gh file and the picture. Thank you!
series.gh (38.8 KB)

[saripuspita12345]

still open and closing at the same time

supposed to be like this, open and closing gradually

[HS_Kim]

Like this?

SineCurveRevolutionByAttractor_re.gh (18.2 KB)

[saripuspita12345]

Thankyou for sharing I never know there’s an another way. Thankyou very much!