This adds an opening to the XL Exhaust camera cover. It works great in conjunction with this camera holder model:
https://www.printables.com/model/759784-camera-holder-for-kasa-kc410s-camera-with-cable-ma
Instructions:
Put it where it should go, draw with a pen around the inner outer rim, cut a hole, push it in, glue it in place and glue then a transparent piece of plastic in front to keep the air in.
The author remixed this model.
This adds a camera opening to the XL exhaust cover.