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    Extruder won't extude at specific coordinates

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    • TimsWorkshopundefined
      TimsWorkshop
      last edited by TimsWorkshop

      Very, very strange issue here...

      I've got an extruder motor, which at specific coordinates, it will not extrude and I get reported motor out of phase errors. I did put a new extuder motor on, it's a Stepping Motor 42BYGH-40 1.8 - 23A

      As example:

      1. Nozzle at X227 Y187.5 Z55 (center of bed) - I can extrude no problem
      2. Nozzle at X27 Y0 Z55 (top left of bed) - I can extrude no problem
      3. Nozzle at X327 Y0 Z55 (top right of bed) - I can extrude no problem
      4. Nozzle at X327 Y355 Z55 (back right of bed) - I can extrude no problem
      5. Nozzle at X317 Y355 Z55 (back right of bed) - I can extrude no problem
      6. Nozzle at X317 Y355 Z55 (back right of bed) - I can extrude no problem
      7. Nozzle at X215 Y355 Z55 (back right of bed) - I cannot extrude no problem - Console reports Warning: motor phase A may be disconnected reported by driver(s) 3
      8. Nozzle at X225 Y355 Z55 (back right of bed) - I cannot extrude no problem - Console reports Warning: motor phase A may be disconnected reported by driver(s) 3

      I'm at a loss as to why at a specific point, my extruder motor stops working - and the cable are not strained, they're at the back of my printer closest to the board... in fact, when it moves further way, it starts to work.
      not-printing.jpg

      Ender 5 Plus - E3D Hemera Hotend - Duet 2 Wifi

      fcwiltundefined alankilianundefined 3 Replies Last reply Reply Quote 0
      • fcwiltundefined
        fcwilt @TimsWorkshop
        last edited by

        @infidelprops said in Extruder won't extude at specific coordinates:

        I've tried to make it a bit easier to read and eliminated some duplicates

        Z position = 55
        
        XY positions that extrude
        -------------------------
        X227 Y187.5 ; center
        X27  Y0     ; top  left
        X327 Y0     ; top  right
        X327 Y355   ; back right
        X317 Y355   ; back right
        
        XY positions that don't extrude
        -------------------------------
        X215 Y355 ; back right
        X225 Y355 ; back right
        

        Printers: a small Utilmaker style, a small CoreXY and a E3D MS/TC setup. Various hotends. Using Duet 3 hardware running 3.4.6

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        • fcwiltundefined
          fcwilt @TimsWorkshop
          last edited by

          @infidelprops

          My first thought would be intermittent wiring.

          Frederick

          Printers: a small Utilmaker style, a small CoreXY and a E3D MS/TC setup. Various hotends. Using Duet 3 hardware running 3.4.6

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          • alankilianundefined
            alankilian @TimsWorkshop
            last edited by

            @infidelprops

            Try this experiment:

            • Disable your X and Y motors by unplugging them from the Duet
            • Remove filament
            • Enable cold extrusion
            • Start a long extrusion
            • By hand, move your carriage around

            If you get the error when you move your carriage by hand to those locations, it's 100% a wiring issue.

            If you CAN move around and the extrusion continues, I'll propose another experiment.

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

            TimsWorkshopundefined 2 Replies Last reply Reply Quote 1
            • TimsWorkshopundefined
              TimsWorkshop @alankilian
              last edited by

              @alankilian and @fcwilt Thanks, I'll give that a go, but I expect it's a wiring issue as I plugged in a different stepper motor and it is doing the same thing.

              On that note... does anyone know the specific name these stepper motor JSTs are? I've been trying to find them at my local stores website, but just not sure which ones they are.

              Ender 5 Plus - E3D Hemera Hotend - Duet 2 Wifi

              TimsWorkshopundefined 1 Reply Last reply Reply Quote 0
              • TimsWorkshopundefined
                TimsWorkshop @TimsWorkshop
                last edited by

                @infidelprops found them... looks to be 2.0 mm pitch, 6 pin JSTs

                Ender 5 Plus - E3D Hemera Hotend - Duet 2 Wifi

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                • TimsWorkshopundefined
                  TimsWorkshop @alankilian
                  last edited by

                  @alankilian Ok... really good experiment... X/Y unplugged and did a hot extrusion as I needed to get some filament out, but as I manually moved the carriage around, the extruder did not skip a beat and it kept moving...

                  Ender 5 Plus - E3D Hemera Hotend - Duet 2 Wifi

                  o_lampeundefined 1 Reply Last reply Reply Quote 0
                  • o_lampeundefined
                    o_lampe @TimsWorkshop
                    last edited by

                    @infidelprops Is your extruder cable bundled with the X- or Y-stepper cables?
                    I had issues of that kind, because I had a stepper cable wrapped around another stepper cable. It was only one turn.

                    TimsWorkshopundefined 1 Reply Last reply Reply Quote 1
                    • TimsWorkshopundefined
                      TimsWorkshop @o_lampe
                      last edited by

                      @o_lampe Thanks for the suggestion mate, but they are seperated and I don't have them anywhere near each other, except for when plugged into the board.

                      Ender 5 Plus - E3D Hemera Hotend - Duet 2 Wifi

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

                        @infidelprops OK, great experiment. So it doesn't seem like it's a wiring issue so far.

                        Next experiment.........

                        Start near the middle of the bed and extrude.
                        Then use G1 X... Y... to (at a low-speed) move in small steps towards the location where you get the extrusion motor error.
                        See how close you get before getting the error.

                        • Go back and forth to see if it always happens at the same location.
                        • Try moving slowly or quickly to see if that makes any difference.

                        I'm trying to see if there's some electrical interference from the X-Y motors or what.

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

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