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    PID does not work

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    Tuning and tweaking
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    • Haggan90undefined
      Haggan90
      last edited by

      Hi,

      Iv'e done multiple PID tunes but I still get this error every time, what am I doing wrong?!

      Heater 1 fault: temperature rising too slowly: expected 0.64°C/sec measured 0.37°C/sec

      This is my M307

      M307 H1 R1.863 K0.492:0.000 D11.56 E1.35 S1.00 B0 V24.3```
      dc42undefined A Former User? 3 Replies Last reply Reply Quote 0
      • dc42undefined
        dc42 administrators @Haggan90
        last edited by

        @Haggan90 do you get that error every time you heat the tool, or only if it is heating with the print cooling fan running?

        From the M307 parameters it appears that either you have no print cooling fan, or you tuned the heater not the tool, so it didn't measure the effect of the pront cooling fan.

        Duet WiFi hardware designer and firmware engineer
        Please do not ask me for Duet support via PM or email, use the forum
        http://www.escher3d.com, https://miscsolutions.wordpress.com

        Haggan90undefined 1 Reply Last reply Reply Quote 0
        • Haggan90undefined
          Haggan90 @dc42
          last edited by

          @dc42 I did the tuning with the print cooling fan on, but it said something like "it appears the print cooling fan is not cooling down the hotend"

          jay_s_ukundefined 1 Reply Last reply Reply Quote 0
          • jay_s_ukundefined
            jay_s_uk @Haggan90
            last edited by

            @Haggan90 best tune as a tool i.e. M303 T0 S240

            Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is

            Haggan90undefined 1 Reply Last reply Reply Quote 0
            • Haggan90undefined
              Haggan90 @jay_s_uk
              last edited by

              @jay_s_uk I did so

              dc42undefined Haggan90undefined 2 Replies Last reply Reply Quote 0
              • dc42undefined
                dc42 administrators @Haggan90
                last edited by

                @Haggan90 which firmware version are you using?

                Duet WiFi hardware designer and firmware engineer
                Please do not ask me for Duet support via PM or email, use the forum
                http://www.escher3d.com, https://miscsolutions.wordpress.com

                1 Reply Last reply Reply Quote 0
                • Haggan90undefined
                  Haggan90 @Haggan90
                  last edited by

                  @Haggan90 3.4.2

                  1 Reply Last reply Reply Quote 0
                  • Phaedruxundefined
                    Phaedrux Moderator
                    last edited by

                    What kind of heater is it? Photos?

                    Z-Bot CoreXY Build | Thingiverse Profile

                    Haggan90undefined 1 Reply Last reply Reply Quote 0
                    • Haggan90undefined
                      Haggan90 @Phaedrux
                      last edited by

                      @Phaedrux It's just a Volcano heater, I never had this problem before RR3.

                      1 Reply Last reply Reply Quote 0
                      • A Former User?
                        A Former User @Haggan90
                        last edited by A Former User

                        This post is deleted!
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                        • dc42undefined
                          dc42 administrators @Haggan90
                          last edited by

                          @Haggan90 two suggestions:

                          1. Upgrade to firmware 3.4.6
                          2. If that doesn't help, reduce the R parameter in the M307 command. Try a 25% reduction first. If you reduce it too much then the temperature will overshoot the set value.

                          Duet WiFi hardware designer and firmware engineer
                          Please do not ask me for Duet support via PM or email, use the forum
                          http://www.escher3d.com, https://miscsolutions.wordpress.com

                          Haggan90undefined 1 Reply Last reply Reply Quote 0
                          • Haggan90undefined
                            Haggan90 @dc42
                            last edited by

                            @dc42 Ok thank you, I will try that!

                            1 Reply Last reply Reply Quote 0
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