We were discussing electronics cooling in another post here in the community and I volunteered to whip up a simple cooling duct to direct the air from the 40mm fan onto the printer board.
Now, if I were really dedicated, I’d go ahead an analyze this in OpenFOAM or something to make sure the air distribution is okay, but I’m not. I just kinda eyeballed it. It might be more beneficial to make it even a bit sorter as I feel the outboard side of the board will be getting much less air. That said, the important thing is that there’s air moving across it, so there’s no doubt this will be an improvement.
There are 2 channels for the air to flow through to better distribute the air. It also makes the duct a bit stronger, not that there’s any load on it or anything.
As you can see from some of the photos, I got a fair amount of overhang derp on the first print. The second time, I added support for anything over 45deg. Worked very well and wasn’t too difficult to remove. I would recommend doing this if you plan to print it yourself. I use Cura at the moment, and I left all support settings alone except the density, which I upped to 25%.
Speaking of printing it yourself, here’s the STL: https://www.dropbox.com/s/t30x4v8ob4ic24x/Eustathios%20-%20Air%20Duct%20Electronics.stl?dl=0
STEP file: https://www.dropbox.com/s/e096qalzkkv6jbw/Eustathios%20-%20Electronics_AirDuct.step?dl=0
The models, like the rest of the printer, are CC-BY-SA 4.0
As always in this community, we all benefit from each other’s work. If you do end up printing it and you think something could be better, please let me know or go ahead and make the changes yourself and share it.
