Cold weather/room printing

Hello printing peeps,
Question, Any way to turn off the exhaust fan in the Bambu studio?
Since the beginning of winter, and my basement getting cold, I’ve ran into issues with warping on the left, and now in the front. I’ve disabled the Axillary fan with a custom filament setting, that fixed the left side issue. Now I have it at the front. If I remember to turn off the Axillary fan as soon as the print starts I don’t have an issue with the front warping and coming off the build plate. Hoping to add that to my settings in Bambu Studio when printing PLA.
I think a external thermometer on the machine would be the next step for Bambu to fix this issue.
FYI, I also run a A1 mini in my basement, and printing the same parts I have no issue. I believe its just the air getting pulled over it.
Thanks in advance for any advice.

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AFAIK, not unless you were to insert g-code to do it.

Or… now that I think of it, I suppose you could spoof it by creating an ABS profile (or other high temperature profile) with your PLA settings and use that.

It’s unfortunate we’re forced into these contortions.

You can turn it off or throttle it manually after the print is underway though. Not what you were asking, but an option.

What I wish could be done is to set a chamber temperature less than 40C and have the heating function manage it. Say, set it at 25 or 30C to compensate for a cold room. Stupidly, that functionality seems to be missing. Setting chamber temperature at anything below 40C turns off the heating function entirely.

Also, it needs a fan to just circulate the air inside the chamber to arrive at a uniform temperature. Presently there is huge heat stacking (i.e. hot at the top and cold at the bottom of the chamber).

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I’m not sure about your exhaust fan but I did see these tips on ty recently about printing in the cold. My shop is climate controlled so I don’t have issues but I’m sure that’s frustrating!

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You can open the setting in Printer settings by checking the box under Accessory/Air filtration enhancement. Then you can see the setting in Filament settings under Cooling at the bottom. Someone said it to turn it off completely you still have to check the box next to Activate air filtration and set them to 0 but it may have changed since then. Mines are at 10% now and it works as expected.
Also I don’t know what your room temps are at but when you’re printing PLA make sure to check the chamber temperature and make sure it doesn’t pass 40° if you decide to turn it completely off.