Antminer 3in duct adapter

I looked for something like this but didn't find any 3 inch flexible duct versions that also didn't use lots of filament, so I designed this flexible duct adapter for my Antminer S9 so I could easily channel hot exhaust outside for the summer. It will mount on any 120mm computer fan so could be used for many other purposes than bitcoin miner exhaust work.

I made this to be used with an inline booster fan I designed here: https://www.thingiverse.com/thing:3630807

Will add more photos later.