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    Bed PID tuning warning message

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    • wouldstainundefined
      wouldstain
      last edited by

      Just looking for a little insight on the meaning of this...
      Ran bed PID tuning after converting to MRW kinematic mount kit.
      It took several hours to complete but with a warning message.

      Warning: heater behaviour was not consistent during tuning
      Auto tuning heater 0 completed after 3 idle and 25 tuning cycles in 11953 seconds. This heater needs the following M307 command:
      M307 H0 B0 R0.344 C393.5 D30.24 S1.00 V24.1
      Edit the M307 H0 command in config.g to match this. Omit the V parameter if the heater is not powered from VIN.

      What does this mean and is it something I should be concerned with? The Railcore documentation indicates that the bed PID tuning should take more around 30 minutes not 3+ hours..

      running DWC 3.3 w/ RRF 3.3

      T3P3Tonyundefined 1 Reply Last reply Reply Quote 0
      • T3P3Tonyundefined
        T3P3Tony administrators @wouldstain
        last edited by

        @wouldstain beds do take longer to tune however that is a bit crazy, was there a lot of variation in ambient temperature at points during the tuning cycle?

        www.duet3d.com

        wouldstainundefined 1 Reply Last reply Reply Quote 0
        • wouldstainundefined
          wouldstain @T3P3Tony
          last edited by

          @t3p3tony Very little. In fact, I've got the MRW top cover on it so chamber temp is somewhat less impacted by outside ambient temperature.

          T3P3Tonyundefined 1 Reply Last reply Reply Quote 0
          • T3P3Tonyundefined
            T3P3Tony administrators @wouldstain
            last edited by

            @wouldstain will have to ask @dc42 what he makes of the "heater behaviour was not consistent..." message. did you happen to get a screenshot of the temperature graph?

            www.duet3d.com

            wouldstainundefined 1 Reply Last reply Reply Quote 0
            • wouldstainundefined
              wouldstain @T3P3Tony
              last edited by

              @t3p3tony I did not as it ran for a fairly long time. If there's a way to get sample logs out of it I'd be happy to run it again and provide data.

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