Duet3D Logo Duet3D
    • Tags
    • Documentation
    • Order
    • Register
    • Login

    Issues with PID Tuning (RRF 3.4.0-b7)

    Scheduled Pinned Locked Moved
    Beta Firmware
    6
    24
    1.6k
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • gloomyandyundefined
      gloomyandy @Argo
      last edited by

      @argo Well it certainly seems to be much better with 3.3. I wonder if @dc42 has any thoughts on what might be happening here?

      It would certainly be interesting to see how well both 3.3 and 3.4beta7 work with just a single K value.

      Argoundefined 1 Reply Last reply Reply Quote 0
      • Argoundefined
        Argo @gloomyandy
        last edited by

        @gloomyandy

        Just did a new PID (still RRF 3.3) as a H(eater) and not T(ool) so there is no calibration with the fan included.

        M307 H1 B0 R4.676 C121.5 D4.48 S1.00 V24.3

        And the temperature is pretty stable during a print:

        18605ec5-d009-4eb6-9aeb-c8648c92a803-image.png

        Should make no difference with RRF 3.4.0-b7 but I'll also test the PID as a heater and not tool.

        massimilianocontiundefined 1 Reply Last reply Reply Quote 0
        • massimilianocontiundefined
          massimilianoconti @Argo
          last edited by massimilianoconti

          try firmware 3.4 beta 7+7

          https://www.dropbox.com/sh/i5vox3xmkd55gaz/AAC19mI0WEC5GmEjLOBRbKs-a?dl=0

          if you still have problems I help you in another way

          Argoundefined 1 Reply Last reply Reply Quote 0
          • Argoundefined
            Argo @massimilianoconti
            last edited by

            @massimilianoconti

            3.4 beta7+7 - the results were even worse with PID

            massimilianocontiundefined 1 Reply Last reply Reply Quote 0
            • bastienundefined
              bastien
              last edited by

              This post is deleted!
              1 Reply Last reply Reply Quote 0
              • massimilianocontiundefined
                massimilianoconti @Argo
                last edited by

                then for the bed try to give this code in duet web control

                M303 H0 S80 Y3

                Y3= 3 hysteresis cycles

                Argoundefined 1 Reply Last reply Reply Quote 0
                • Argoundefined
                  Argo @massimilianoconti
                  last edited by

                  @massimilianoconti

                  I have no PID issues with the bed.

                  The extruder PID calibration does not work for me when the parts cooling fan is included. Therefore I need to start the PID calibration as a heater and not as a tool.

                  The Rapido uses a different kind of heater which needs less power at higher temperatures. Maybe that is causing trouble for the PID calibration.

                  massimilianocontiundefined 1 Reply Last reply Reply Quote 0
                  • massimilianocontiundefined
                    massimilianoconti @Argo
                    last edited by

                    ok try this code to calibrate as a tool M303 T0 S205 Y3

                    Argoundefined 1 Reply Last reply Reply Quote 0
                    • Phaedruxundefined Phaedrux moved this topic from General Discussion
                    • Argoundefined
                      Argo @massimilianoconti
                      last edited by

                      @massimilianoconti

                      Y3 or Y5 produce the same PID results which cause issues. Only solution I have atm is to use the old PID calibration which does not include the fan.

                      massimilianocontiundefined 1 Reply Last reply Reply Quote 0
                      • massimilianocontiundefined
                        massimilianoconti @Argo
                        last edited by massimilianoconti

                        then try to change these parameters:

                        I put my values try to use suitable values for you. you can find in config-override.g

                        try for example starting from your values to lower R and increase D

                        M307 H1 R2.762 D6.75

                        then put the string in duet web controll and press enter

                        digit M500 and press enter

                        make sure you have M501 at the end of config.g

                        1 Reply Last reply Reply Quote 0
                        • Herniczundefined
                          Hernicz
                          last edited by

                          This post is deleted!
                          massimilianocontiundefined 1 Reply Last reply Reply Quote 0
                          • massimilianocontiundefined
                            massimilianoconti @Hernicz
                            last edited by

                            ok the geometry and type of material affect the pid adjustment

                            1 Reply Last reply Reply Quote 0
                            • droftartsundefined droftarts referenced this topic
                            • First post
                              Last post
                            Unless otherwise noted, all forum content is licensed under CC-BY-SA