I wanted Dual fans and to still have access to the side of my Chimera Clone. I also don't like using supports so this is a two piece print.
The two holes that you can use to fix one of the ducts to the main body are 2mm. you can use a piece of 1.75mm filament with glue or i used a toothpick so I can just slide the duct off to change it if the need arises. The third hole in the body is for sizing purposes.
At the moment there are two versions of the fan duct, a dual nozzle and a wide version. I may add more later.