This is a window vent that includes provisions for a freestanding air conditioner that has a hose for hot air exhaust as well as a 4" diameter 3D printer exhaust vent. This is made specifically for my double-hung window that measures 26-5/16" wide. I make no guarantees that this will work for your application, but you may find some inspiration from the models. It is a long print at almost 20 hours. It is not optimized for printing, but is optimized for the end-use, so it does need a good deal of supports to print acceptably. I used white PETG and recommend PETG at least to be durable enough for long-term use when exposed to outdoor elements. I added some wax to the printer exhaust coupler as it was a bit tight when turning.