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    motor phase B may be disconnected reported by driver(s) 3

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    • Milan
      Milan last edited by

      Extrusion missing in particular location in print, extrusion is normal when crosses the region...
      Motor wires changed twice
      checked all the config parameters
      Slow speed, high speed checked

      It was printing normal till 68% after that the extrusion missing started happening (one region of the print alone

      Help required to solve the issue

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      • Milan
        Milan last edited by

        IMG20191102222514.jpg

        dc42 1 Reply Last reply Reply Quote 0
        • dc42
          dc42 administrators @Milan last edited by

          Which axis is front to back in that photo? Does the extruder motor move along that axis?

          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

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          • Milan
            Milan last edited by

            Y Axis is front to back, Extruder moves along Y Axis, It was printing on vase mode

            once I pause the print and try to extrude, the motor was vibrating , it was trying to move back and forth

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            • Milan
              Milan last edited by

              [0_1572718564897_VID-20191102-WA0012 copy.mp4](Uploading 100%)

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              • Milan
                Milan last edited by

                shared the video, after the issue, every layer in that portion not getting printed (extruder motor starts rumbling that point and again starts working normal after crossing the region..
                Its happening for all the models...Initial layers are getting printed in-between all of a sudden the extrusion issue pops up..

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                • denke
                  denke last edited by

                  @Milan

                  What you're describing (rambling, clicking, not turning) is a tell tale sign of missed steps, which can be caused by disconnected phases.

                  You mentioned a cable swap, which is a good start, but this could be a contact error on the motor itself for example.

                  If you use a motor with somekind of connector on it, maybe that connector is faulty, or if the motor has leads maybe one of those are broken.

                  unlikely, but if the cable is loose (for ex. not ziptied), than it can also be a broken connector on the duet itself revealed only when the cable is at a certain position, flexing the connector a certain way

                  If I were you, I would check everything: Connectors, cables, motor, etc. Try to reproduce the error, and start flexing connectors and stuff

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                  • Milan
                    Milan last edited by

                    Its happening exactly on the same points, I've checked duet connectors, cable swap done - need to check the motor connector...
                    but how that happens only in those points...

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                    • Veti
                      Veti last edited by

                      it could also be a pinched bowden tube in those positions.

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                      • denke
                        denke last edited by

                        @Veti
                        Thought about the same thing, but the thread title is motor phase B may be disconnected reported by driver(s) 3 which probably procludes the possibility of a filament jam. Or I misunderstood something 🙂

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                        • Veti
                          Veti last edited by

                          what firmware version are you on?

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                          • Milan
                            Milan last edited by

                            Firmware V2,03

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                            • Veti
                              Veti last edited by

                              i would not dismiss the pinching. it has to be something mechanical, otherwise it would the entire top layer.

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