Set minimal fan speed for chamber fans but keep auto speedup
 
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Set minimal fan speed for chamber fans but keep auto speedup  

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sgeissler
(@sgeissler)
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Set minimal fan speed for chamber fans but keep auto speedup

Hi all,

I am looking for a way to set a minimal speed for the chamber fans, but still have them to automatically speed up when the chamber temperature rises.

Background is, I have the printer ventilated outside and would like there to always be a slight negative pressure in the enclosure.

Is there a way to maybe achieve this in gcode using the layer change custom instructions? For example, can I set the chamber fan to 10% if the temperature is below the nominal threshold, and set it to auto once the nominal threshold is reached?

Thanks!

Posted : 10/07/2025 8:51 pm
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