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    Bed PID when in heated chamber?

    Scheduled Pinned Locked Moved
    Tuning and tweaking
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    • bubblevisorundefined
      bubblevisor
      last edited by

      I have a bed heated chamber that runs at 71C courtesy of a circulation fan increasing bed heat dissipation.

      Question: How should I run the PID and configure the bed heater M307? Running the bed PID tune when everything is cold and fan off is not likely to get the optimal tune.
      I know you can add the fan on/off parameter on M307 with Caaa:bbb. But what about the high chamber air temperature? I feel I should I be doing the PID tune with the chamber at 71C not cold. Would this throw a heater fault when chamber is cold?

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      • Phaedruxundefined
        Phaedrux Moderator
        last edited by

        Have you tried tuning it yet? What values did it produce?

        It's probable that you'll get differences in behaviour when tuning from cold and from a warmer ambient.

        In a normal use case, what would the environmental conditions be? Running from cold, or already being warm?

        What wattage is the heater?

        Z-Bot CoreXY Build | Thingiverse Profile

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