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Problem with rear side of Test Cube

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  • undefined
    fcwilt
    last edited by 16 Jan 2021, 22:16

    I don't think you can attribute that to the slicer settings.

    I think you have extruder hardware problems.

    Have you calibrated the extruder multiple times to see if it remains consistent.

    Have you watched the extruder temperature readout during printing to see if it is remain consistent.

    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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    • undefined
      dmbgo
      last edited by 16 Jan 2021, 22:18

      The extruder temp is 235C and I have experimented with bed temps from 80C to 120C. I didn't really notice much change, except that with a bed of 80C, adhesion was deteriorating.

      Regards David Maher

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      • undefined
        dmbgo
        last edited by 16 Jan 2021, 22:24

        I haven't recalibrated the extruder, but I think my temperature is consistent. The window in the browser that shows the temp is consistent. I'm just running the cube now, so that I can post the temp readouts.

        Regards David Maher

        undefined 1 Reply Last reply 16 Jan 2021, 22:35 Reply Quote 0
        • undefined
          fcwilt @dmbgo
          last edited by 16 Jan 2021, 22:35

          @dmbgo said in Problem with rear side of Test Cube:

          I haven't recalibrated the extruder, but I think my temperature is consistent. The window in the browser that shows the temp is consistent. I'm just running the cube now, so that I can post the temp readouts.

          I didn't see that you mentioned the kind of filament you are using.

          For PLA I use 200 for the extruder and 60 for the bed but keep in mind my 200/60 may not match you 200/60 - it all depends on the thermistors and how correct the thermistor configuration values are.

          For speed I use 60 mm/s to 90 mm/s depending on desired quality with the first layer at 15 mm/s.

          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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          • undefined
            alankilian @dmbgo
            last edited by 16 Jan 2021, 22:37

            @dmbgo Can you File->Save Factory File as... and post it?
            That way I can see your slicer settings and all that.

            Untitled.png

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

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            • undefined
              dmbgo
              last edited by 16 Jan 2021, 22:37

              Thanks Fredrick, I am using ABS.
              9d9bcb85-6050-4584-87a5-eb08d64031f2-image.png

              Regards David Maher

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              • undefined
                dmbgo
                last edited by 16 Jan 2021, 22:40

                No worries @alankilian here it is:
                [0_1610836772941_xyzCalibration_cube.factory](Uploading 100%)

                Regards David Maher

                undefined 1 Reply Last reply 16 Jan 2021, 22:40 Reply Quote 0
                • undefined
                  alankilian @dmbgo
                  last edited by 16 Jan 2021, 22:40

                  @dmbgo Try that upload again please.

                  Also, what filament are you using?

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

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                  • undefined
                    alankilian
                    last edited by 16 Jan 2021, 22:41

                    I print PLA at 60C bed and 205C extruder, so you're significantly hotter than I am.

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

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                    • undefined
                      dmbgo
                      last edited by 16 Jan 2021, 22:42

                      I'll try renaming it to *.txt, you'll have to change it to *.factory:
                      xyzCalibration_cube.factory.txt

                      Regards David Maher

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                      • undefined
                        dmbgo
                        last edited by 16 Jan 2021, 22:43

                        I am using ABS filament.

                        Regards David Maher

                        undefined 1 Reply Last reply 16 Jan 2021, 22:56 Reply Quote 0
                        • undefined
                          dmbgo
                          last edited by 16 Jan 2021, 22:49

                          On the filament roll, it recommends Extruder 220 to 260C Bed 100 to 110C

                          Regards David Maher

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                          • undefined
                            dmbgo
                            last edited by 16 Jan 2021, 22:52

                            e7bf91f0-9fd2-4428-96be-79aa49d59bef-image.png

                            Regards David Maher

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                            • undefined
                              fcwilt @dmbgo
                              last edited by 16 Jan 2021, 22:56

                              @dmbgo said in Problem with rear side of Test Cube:

                              I am using ABS filament.

                              Do you have a heated enclosure?

                              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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                              • undefined
                                alankilian
                                last edited by 16 Jan 2021, 22:58

                                I'm afraid I'm out of my experience zone with ABS.

                                I have read not to use fans for the first 3 layers, but that's not your problem.

                                Do you see filament extruding on the back cornets?

                                Do you hear your extruder struggling/clicking when that happens?

                                Can you rotate the cube 180-degrees to see if it then happens on the front?

                                Can you rotate the entire printer 180-degrees to see if it changes due to airflow?

                                Do you have an enclosure?

                                My only ABS experience is using a Stratasys where everything is controlled for me and it works perfectly.

                                Someone with more ABS experience will probably jump in next and hopefully be able to help you more than I can.

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

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                                • undefined
                                  dmbgo
                                  last edited by dmbgo 16 Jan 2021, 23:00

                                  I do have, but the printer isn't in it at present while I'm working on it. I usually drop the bed temp down when the printer's in there.

                                  20210117_095836.jpg

                                  Regards David Maher

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                                  • undefined
                                    fcwilt
                                    last edited by 16 Jan 2021, 23:06

                                    From what I have read ABS really needs a heated enclosure BUT I don't know if that is related to your problem.

                                    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

                                    1 Reply Last reply Reply Quote 0
                                    • undefined
                                      dmbgo
                                      last edited by 16 Jan 2021, 23:09

                                      @alankilian said in Problem with rear side of Test Cube:

                                      1/ Do you see filament extruding on the back cornets?
                                      2/ Do you hear your extruder struggling/clicking when that happens?
                                      3/ Can you rotate the cube 180-degrees to see if it then happens on the front?
                                      4/Can you rotate the entire printer 180-degrees to see if it changes due to airflow?
                                      5/Do you have an enclosure?

                                      1/ Back cornets?
                                      2/No clicking, extruding nicely when I move it up and extrude some filament.
                                      3/I should have mentioned that I had done that, it still happens on the rear (mainly)
                                      4/The pinter is on a wheeled trolley, I have tried that. Ambient temp is 18.4C atm.

                                      Regards David Maher

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                                      • undefined
                                        dmbgo
                                        last edited by dmbgo 16 Jan 2021, 23:12

                                        "From what I have read ABS really needs a heated enclosure BUT I don't know if that is related to your problem. Frederick"

                                        Yes, I found that out a while ago, which is why I made the one in the pic. It is made from 50mm expanded foam, coated with thin fiberglass panels. The material came from an old coolroom.

                                        Regards David Maher

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                                        • undefined
                                          dmbgo
                                          last edited by 16 Jan 2021, 23:38

                                          But the issue remains. Any other helpful suggestions, they've been good so far?

                                          Regards David Maher

                                          undefined 1 Reply Last reply 16 Jan 2021, 23:43 Reply Quote 0
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