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06-22-2020, 08:50 PM #11
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- Feb 2018
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I had the toilet fan on for all 7 hours. I guess it was not fast enough to suck out the fume than generation.
Let's say we are facing the front of an enclosure, do you mean one in fan between us and the enclosure and another out fan behind the enclosure directly out of the window via a duck? I see some people putting one exhausting fan vertically on top of the enclosure. Which way is better? Also, do you recommend having the filament roll inside or outside the enclosure?
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06-23-2020, 10:50 AM #12
As far as filament goes - it depends how warm it gets inside the enclosure. You don't want the filamnet to get warm to the point of softening and stretching.
Yeah basically fan facing the room and exhaust facing the window.
Guess you could mount the exhaust on the top, but what I was envisaging was creating a cross current that just removes the air at the top.
If you just have an exhaust fan at the top, then you will draw in air from the bottom of the enclosure that could possibly cool the print bed down.
With a fan blowing in and one sucking out at the top you shouldn't be creating any significant air flow over the print bed itself.
Well that's my theory anyway :-)
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06-23-2020, 03:44 PM #13
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- Feb 2018
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06-24-2020, 06:21 AM #14
Umm, kind of self explanatory - cross current is a current of air that that goes across - horizontally. from one side to another.
Rather than from top to bottom.
And yep - I wouldn't put any fans down near the print bed.
Hot air rises, so the hot air from the print bed and printhead will rise, with any micro particles and the cross current should take them outof the enclosure and exhaust to the outside.
I will state that I have not done this - it's just what I WOULD do if I were going to build such an enclosure :-)
So in that respect - try and match both fans so that the air flow into the enclosure matches the airflow out of the enclosure. If your exhaust is stronger than your input it will create a partial vacumn and start drawing air in from lower down, potentially cooling the printbed.
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05-03-2021, 02:06 AM #15
Oh man, that is a pretty... tough question. I do not really think that using two fans would be a good idea. Theoretically, it is going to work just as fine as it could, but taking into consideration the fact that you only have a small sliding window, it could be a problem, because you will be having a lot of exhaustion. Well, I am not really sure, but you could actually try it, it might actually work out. I had a similar room back in the day, that is why I was using a big air conditioner to keep the air fresh. However, I had to call for the services of waychoffsac.com, only after a couple of days, as the a/c got broken.
Last edited by Dominash; 05-04-2021 at 04:24 PM.
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