I have this weird skylight type window I needed to run my Anycubic Photon Mono M5s Pro ventilation through, I designed two connectors for the inside, because I was originally going to be using one of those AC window adapters, essentially a board, so I made one to be screwed into a flat surface, then wound up not using the board, so I made a second internal adapter that fits quite snuggly in the 4" dryer duct I am using. It wound up working really well so I thought I would throw it up here in case anyone else is trying to vent out of a similar window.

I designed the parts to be easy to print and glue together, there are holes for 12 8mm x 3mm neodymium magnets, which is totally overkill but I wanted it to be able to hold the weight of the ducting.