ah i thought about the fan ducts and not about the heat creap, yeah that could be not so nice....
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Thank you very much, it works. I wasn't aware that some other power supplies had the same Problem.
So, i made some tests, this is the final version, better and also, look for the head temp or the bed 😄
while boards.vIn.current < 23
....if tools.active >= 100 || heat.heaters.active >= 40