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My 80mm Bed Fan Mod
Posted: Sat Apr 02, 2016 7:41 pm
by zemlin
https://grabcad.com/library/makergear-m ... and-duct-1
The duct builds with the 80mm flange on the table. I made everything in PLA with .1mm layers.
Re: My 80mm Bed Fan Mod
Posted: Sat Apr 02, 2016 8:05 pm
by Jules
Nice! That oughta cool it down!
Re: My 80mm Bed Fan Mod
Posted: Sat Apr 02, 2016 8:24 pm
by zemlin
Jules wrote:Nice! That oughta cool it down!
It does, but my main goal was to run the fan slower for less noise.
Re: My 80mm Bed Fan Mod
Posted: Sat Apr 02, 2016 10:15 pm
by jsc
Nice model. The problem is, it turns out high CFM 80mm fans rely on moving a large volume of air at low pressure to get that CFM, which is the opposite of what you want in a ducted fan.
Re: My 80mm Bed Fan Mod
Posted: Sat Apr 02, 2016 10:28 pm
by zemlin
jsc wrote:Nice model. The problem is, it turns out high CFM 80mm fans rely on moving a large volume of air at low pressure to get that CFM, which is the opposite of what you want in a ducted fan.
As I said above, my main goal was to maintain cooling with a lower RPM fan - not to increase CFM.
Re: My 80mm Bed Fan Mod
Posted: Tue Apr 05, 2016 11:11 pm
by pyronaught
Love the color scheme. What CAD program are you using?
Re: My 80mm Bed Fan Mod
Posted: Wed Apr 06, 2016 5:43 pm
by zemlin
I use PTC Creo (aka Pro/ENGINEER) via the day job.