The author remixed this model.
I've only created a housing and modified the base plate to fit the original enclosure. You can find the other components via this link
https://www.printables.com/model/5122-servo-automated-iris-aperture-for-air-flow-control?fbclid=IwY2xjawFJjdNleHRuA2FlbQIxMQABHRWC2WryV2BB-vOB9aLPCMgcDEOzkZ1DSODJ3_c4VDVUvIlGnHY7Y7f5ew_aem_YvWoU_X34eat7Dw-q10p8g
Please give this person a like.