120mm Fan Shroud to 3" Out

thingiverse

I was in need of a 120mm Fan mount to 3" exhaust out and ended up with this design when I couldn't find what I needed on TV. Plan is to drill a hole in the wall, insert 3" and pump hot air from server room up the wall to attic space. Can also be used for other exhaust or colling needs. This was used in conjunction with a 12v speed controlled fan, from Amazon: <A HREF="https://www.amazon.com/Wathai-Controller-Receiver-Playstation-Component/dp/B07VYGQPCZ">Wathai 120mm AC Powered Fan</A> Edit: unfortunately holes on specs I searched didn't line up. There was however enough room to drill. This is the second iteration that doesn't have a wall plate backing. Was originally designed to go over 2 gang wall plate, however that print required supports and almost double the print time. Fusion360 files attached incase you wish to remix it. Print time for a MK3 is as follows (YMMV) using PrusaSlic3r: - 3.0 "Draft" was clocking at 6hr. - 2.0 "SPEED" setting is just shy of 7HR. - 2.0 "Quality" sits right under 8hr. I went with "SPEED" as this is not a visible item but wanted something better than 3.0 "Draft"