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    Rotating Magnetic Sensor - Keeps Pausing Printer

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    Filament Monitor
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    • 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
            • wouldstainundefined
              wouldstain @T3P3Tony
              last edited by

              @t3p3tony

              about to run test @250C. Will post console output (assuming it pauses)

              config.g attached. modified slightly from previous to account for addition of garolite sheet on build plate.

              WS_110321_config.g

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              • T3P3Tonyundefined
                T3P3Tony administrators @wouldstain
                last edited by

                @wouldstain said in Rotating Magnetic Sensor - Keeps Pausing Printer:

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

                no i don't - that was just an question seeing it at 235.

                www.duet3d.com

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

                  @t3p3tony gotcha.
                  Just ran it at 250C. got this at less than 6%:

                  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 26.29mm/rev, min 1% max 107% over 136.1mm

                  same cube.

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

                    @wouldstain I printed that on the test rig:
                    5ed4bee5-8bcc-4ab8-b129-6ee48d774e88-image.png

                    That was before I got your config so i need to change to your config.

                    Can you try printing one of the drywall anchors in PLA with the PLA settings to see if you get the same issue (trying to see if its related to the PA/retract settings which are different). Also a short print to recreate the issue would be good.

                    www.duet3d.com

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

                      I also need to switch the test rig back to Duet 2 from Duet 3 mini.

                      www.duet3d.com

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                      • wouldstainundefined
                        wouldstain @T3P3Tony
                        last edited by wouldstain

                        @t3p3tony

                        Drywall anchor @ 250C:

                        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 219.24mm/rev, min 6% max 128% over 19.5mm

                        only got about 2% into it before stopping.

                        PLA_250C_Drywall_Anchor.gcode

                        FYI also have PETG printing at -.15 offset via babysteps so I did reset it for PLA.

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

                          @wouldstain

                          My printer has (0,0) in the center.
                          Is there an easy way for me to provide an offset so I can try printing your .gcode?

                          Or can you slice it centered on (0,0) for me to test with?

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

                          wouldstainundefined T3P3Tonyundefined 2 Replies Last reply Reply Quote 0
                          • wouldstainundefined
                            wouldstain @alankilian
                            last edited by

                            @alankilian
                            Not sure how that would be possible as slicer is set up for my railcore rig.
                            Center is somewhere around 150,150.

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                            • wouldstainundefined
                              wouldstain @T3P3Tony
                              last edited by

                              @t3p3tony Ran another print at 195C just to test.
                              got about 60% through it then stopped:

                              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 28.51mm/rev, min -25% max 130% over 132.7mm

                              T3P3Tonyundefined 2 Replies Last reply Reply Quote 0
                              • T3P3Tonyundefined
                                T3P3Tony administrators @alankilian
                                last edited by

                                @alankilian

                                @dc42 used this to offset the prints so they can br printed with e bed centered on 0,0

                                ; Remove the following line if your bed isn't centred on X0 Y0
                                G10 L2 P1 X-150 Y-150

                                offsets the coordinate system by 150mm in both X and Y.

                                Use with caution!

                                www.duet3d.com

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

                                  @wouldstain thanks for the reports.

                                  Can you confirm the changes between PETG and PLA in your setup:

                                  1. Print temperature (don't think this matters as long as prints are working)
                                  2. Print Speed?
                                  3. Retraction distance (looks like 2mm in both files)?
                                  4. PA setting? (looks like PLA = M572 D0 S0.06, PETG = M572 D0 S0.07?)
                                  5. Anything else?

                                  Cheers

                                  www.duet3d.com

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

                                    @t3p3tony

                                    Thanks for the offset infor.

                                    Neither Sinplify3D nor my online GCODE viewer pay attention to G10, so I was unable to figure it out myself.

                                    Printing PLA at 210C I get:

                                    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 117, measured sensitivity 24.51mm/rev, min 94% max 113% over 171.5mm

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

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

                                      @wouldstain tested this on a Duet 2 with my current config:

                                      Duet3D rotating magnet filament monitor v3 on pin e0stop, enabled, sensitivity 24.78mm/rev, allow 0% to 150%, check every 3.0mm, version 3, mag 132 agc 60, measured sensitivity 24.58mm/rev, min 96% max 110% over 190.2mm
                                      
                                      Finished printing file 0:/gcodes/pla_250c_drywall_anchor.gcode, print time was 0h 14m
                                      

                                      www.duet3d.com

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

                                        @wouldstain and now with your config (except for removing the bits that don't apply to the test rig):

                                        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 131 agc 60, measured sensitivity 24.52mm/rev, min 95% max 111% over 190.2mm
                                        
                                        Finished printing file 0:/gcodes/pla_250c_drywall_anchor.gcode, print time was 0h 14m
                                        

                                        That is with a Hermera. I will switch back to the titan as well for a further test.

                                        www.duet3d.com

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

                                          @wouldstain and now with the Titan:

                                          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 129 agc 59, measured sensitivity 23.78mm/rev, min 95% max 106% over 180.9mm
                                          
                                          Finished printing file 0:/gcodes/pla_250c_drywall_anchor.gcode, print time was 0h 14m
                                          

                                          So can't reproduce this with your setup on my extruders. can you do me a favour and print a PETG print (the drywall anchor) and then print the PLA print (same as before) without making changes in between other than temperature an PA as needed and see if you get the differences you have seen earlier between PETG settings and PLA.

                                          www.duet3d.com

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                                          • wouldstainundefined
                                            wouldstain @T3P3Tony
                                            last edited by

                                            @T3P3Tony

                                            Ran this using a different spool of PETG only because its what I had loaded this morning (Atomic Starry Night).

                                            1. Temp
                                              PETG: 235 start, 230 other layers
                                              PLA: 235 start, 230 other layers

                                            2. Print Speed:
                                              PETG: 60 perim / 80 infill
                                              PLA: 60 perim / 80 infill

                                            3. Retraction settings:
                                              PETG: 7mm / 25mm/sec
                                              PLA: 2mm / 25mm/sec

                                            4. PA settings (in this instance):
                                              PETG: .06
                                              PLA: .07

                                            5. Z offset for PETG = -.15

                                            Really not a lot of difference.

                                            I have tried adjusting all of the above settings when printing with PLA with no improvement.

                                            wouldstainundefined 1 Reply Last reply Reply Quote 0
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