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    Rotating Magnetic Sensor - Keeps Pausing Printer

    Scheduled Pinned Locked Moved Solved
    Filament Monitor
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    • wouldstainundefined
      wouldstain @dc42
      last edited by

      @dc42 Duet2Combined.bin for Duet2 Wifi?
      Also, what is the .map file? Is that something I need?

      Thank you!

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

        @wouldstain you can ignore the map file. This is a build of RRF 3.4b5+1, are you running 3.4b5 already? If so then you can just update to this version using the Update system files in DWC->System. If you are not then please update to 3.4b5 first (DWC as well as RRF)

        www.duet3d.com

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

          @alankilian if you have a chance to try the new version that would also be helpful, thanks.

          www.duet3d.com

          alankilianundefined wouldstainundefined 2 Replies Last reply Reply Quote 0
          • alankilianundefined
            alankilian @T3P3Tony
            last edited by

            @t3p3tony I'm on 3.2.

            Can you send me the upgrade instructions and links to the revisions I should install?

            I've got a 30-minute test print that fails so I can test quickly.

            SeemeCNC Rostock Max V3 converted to V3.2 with a Duet2 Ethernet Firmware 3.2 and SE300

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

              @alankilian thanks, if you are happy to make the upgrade then please follow the following steps.

              First upgrade to 3.3:

              • download the Duet2and3Firmware-3.3.zip file from https://github.com/Duet3D/RepRapFirmware/releases/tag/3.3
                and use "system" -> "upload system files to upload it. it will prompt you to install the updates say yes.
              • Assuming that all goes as expected DWC should reload and you should see 3.3 versions reported for DWC and RRF in the General and Machine Specific tabs in DWC.
              • To get around a issues with future upgrades (we switched from /sys/ to /firmware for firmware binaries between 3.2 and 3.3) the best thing is to re- upload the Duet2and3Firmware-3.3.zip again at this point. you don't need to re-install the updates. this just ensures stuff is in the right place for future upgrades.

              Second upgrade to 3.4b5

              • get the Duet2CombinedFirmware.bin and DuetWebControl-SD.zip files from here: https://github.com/Duet3D/RepRapFirmware/releases/tag/3.4.0beta5
              • Upload the firmware binary first and say yes to install the update. then upload the SWC zip.
              • check that the firmware and DWC are now reported as being 3.4b5

              Finally upgrade to the 3.5b5+1

              • Get the Duet2CombinedFirmware.bin from the dropbox link posted earlier. There is no updated DWC.
              • uploaded it as in the previous step, say yes to the update
              • the Machine specific tab/M115 should report 3.4.0beta5+1 (2021-10-29)

              www.duet3d.com

              alankilianundefined 1 Reply Last reply Reply Quote 0
              • alankilianundefined
                alankilian @T3P3Tony
                last edited by alankilian

                @t3p3tony

                Board: Duet 2 Ethernet (2Ethernet)
                Firmware: RepRapFirmware for Duet 2 WiFi/Ethernet 3.4.0beta5+1 (2021-10-28)

                Started a print and almost immediately I got "To much movement"

                Duet3D rotating magnet filament monitor v3 on pin e0stop, enabled, sensitivity 28.80mm/rev, allow 60% to 160%, check every 3.0mm, version 3, mag 133 agc 114, measured sensitivity 16.39mm/rev, min 100% max 100% over 12.0mm

                Resumed and checked again:
                Duet3D rotating magnet filament monitor v3 on pin e0stop, enabled, sensitivity 28.80mm/rev, allow 60% to 160%, check every 3.0mm, version 3, mag 132 agc 114, measured sensitivity 25.89mm/rev, min 94% max 102% over 78.4mm

                Printing completed.
                Duet3D rotating magnet filament monitor v3 on pin e0stop, enabled, sensitivity 28.80mm/rev, allow 60% to 160%, check every 3.0mm, version 3, mag 132 agc 114, measured sensitivity 25.82mm/rev, min 94% max 103% over 1697.9mm

                SeemeCNC Rostock Max V3 converted to V3.2 with a Duet2 Ethernet Firmware 3.2 and SE300

                alankilianundefined 1 Reply Last reply Reply Quote 0
                • alankilianundefined
                  alankilian @alankilian
                  last edited by

                  Second try: Too little movement:

                  Duet3D rotating magnet filament monitor v3 on pin e0stop, enabled, sensitivity 28.80mm/rev, allow 60% to 160%, check every 3.0mm, version 3, mag 130 agc 114, measured sensitivity 26.55mm/rev, min 2% max 105% over 118.3mm

                  Since my AGC is almost at the high limit, I'll do a little sanding to improve it and try again on Monday.

                  SeemeCNC Rostock Max V3 converted to V3.2 with a Duet2 Ethernet Firmware 3.2 and SE300

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

                    @alankilian thanks - it might be the agc, if not then please share the file that causes the too little movement.

                    www.duet3d.com

                    alankilianundefined 1 Reply Last reply Reply Quote 0
                    • alankilianundefined
                      alankilian @T3P3Tony
                      last edited by alankilian

                      @t3p3tony

                      Here's the test file: CalciumCup.gcode

                      I'll adjust and try printing a few more times on Monday.

                      My sensor is just below the extruder and moves around a little bit with the bowden movement.
                      I should probably move it above the extruder.

                      I'll also try that on Monday after getting the AGC in a better range.

                      IMG_6698.JPG

                      SeemeCNC Rostock Max V3 converted to V3.2 with a Duet2 Ethernet Firmware 3.2 and SE300

                      1 Reply Last reply Reply Quote 0
                      • alankilianundefined
                        alankilian @dc42
                        last edited by

                        @dc42

                        Unfortunately, I can't get the AGC under about 115 without the pointy-bits of the brass roller starting to scratch the surface of the sensor chip and not moving all the time.

                        You mentioned stronger magnets. Are they available?

                        Otherwise I may try sanding the top surface of the sensor chip a little.
                        I figure there's enough plastic above the sensor I can get the tiny amount of space I need to get a better AGC value.

                        SeemeCNC Rostock Max V3 converted to V3.2 with a Duet2 Ethernet Firmware 3.2 and SE300

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

                          @alankilian yes if you drop me a line (info@duet3d.com) i can look at arranging a replacement assembly.

                          www.duet3d.com

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

                            @t3p3tony im actually still running 3.3 but I will upgrade today to 3.4b5 and 3.4b5+1 progressively.
                            I just wanted to confirm the file(s) I needed. Should I be using the combined version?

                            thank you!

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

                              @wouldstain the instructions i posted above for alankilian should work for you if you are using Duet 2. do Duet 3 substitute the appropriate firmware binary for your board.

                              www.duet3d.com

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

                                I have done a quite a few tests now and over the short print snippets I have been using I have got consistently good results (wider window than 90%-105%) until PA gets greater than 0.4, with higher pressure advance i see drops down to 70% but still nothing like the 10%, 0% -n% that we were seeing before.

                                I have more tests to do with different retraction distances and print speeds but this is looking very promising. I would be interested in gcode files (preferably short!) that still get poor results with the new build of firmware (3.4b5+1) where all other factors are limited (i.e. good mag readings, short filament path between the extruder and the sensor).

                                www.duet3d.com

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

                                  @t3p3tony Updated firmware and DWC as requested. Printed up a batch of those drywall anchors today with no problem out of PETG.

                                  As soon as I switched to PLA it started happening again:

                                  Duet3D rotating magnet filament monitor v3 on pin e0stop, enabled, sensitivity 26.50mm/rev, allow 1% to 200%, check every 3.0mm, version 3, mag 130 agc 75, measured sensitivity 30.28mm/rev, min 0% max 121% over 97.7mm

                                  m572 d0
                                  Extruder pressure advance: 0.070

                                  PLA_Test-xyzCalibration_cube.gcode

                                  Ran again:

                                  m591 d0
                                  Duet3D rotating magnet filament monitor v3 on pin e0stop, enabled, sensitivity 26.50mm/rev, allow 1% to 200%, check every 3.0mm, version 3, mag 130 agc 75, measured sensitivity 40.48mm/rev, min -1% max 154% over 33.8mm

                                  T3P3Tonyundefined dc42undefined 3 Replies Last reply Reply Quote 0
                                  • T3P3Tonyundefined
                                    T3P3Tony administrators @wouldstain
                                    last edited by

                                    @wouldstain thanks for the report.

                                    Other than the temperature is the only difference between your PETG prints and PLA prints the pressure advance?

                                    You may have already posted it but please post your config.g so i can use those settings in my test.

                                    www.duet3d.com

                                    wouldstainundefined 1 Reply Last reply Reply Quote 0
                                    • dc42undefined
                                      dc42 administrators @wouldstain
                                      last edited by

                                      @wouldstain is the only difference between the PLA and PETG prints is the hot end and bed temperatures? If so, then it's likely that your extruder is skipping steps or losing its grip on the filament, and the filament monitor is reporting correctly. PLA is harder for the extruder to push through the nozzle then PETG is.

                                      You could test this by printing at a high temperature, to make it easier for the extruder to push the filament through. It may result in rubbish print quality, but if it improves the filament monitor readings then it will have identified the problem.

                                      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

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

                                        @wouldstain also what results were you getting with PETG on the drywall insert?

                                        Also looking at the PLA gcode you share, you are printing it at 235C.. have you had success with that temp for PLA in the past?

                                        www.duet3d.com

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

                                          @t3p3tony I have had good results with PLA at higher temps.

                                          I have tried printing at lower temps. the only difference on test / calibration prints seems to be the strength of interlayer adhesion.

                                          I can certainly dial it down if you think it would make a difference.

                                          T3P3Tonyundefined 1 Reply Last reply Reply Quote 0
                                          • wouldstainundefined
                                            wouldstain @dc42
                                            last edited by

                                            @dc42 I normally have higher retraction distance and speed settings to reduce stringing on PETG, so aside from decreasing both while using PLA, really no difference.

                                            I've tried printing PLA with higher temps (accounting for either toolsteel or hardened steel nozzle) but it doesnt seem to matter.

                                            @JohnOCFII has the following in his prusa config:

                                            {if printer_notes=~/.PRINTER_VENDOR_PRUSA3D./}M900 K45{else}M572 D0 S0.06{endif} ; Filament-specific Linear Advance or Pressure Advance

                                            but I've also tried slicing with this commented out and gotten the same results.

                                            1 Reply Last reply Reply Quote 0
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