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Pucking up plastic with my nozzle.

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Tuning and tweaking
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  • undefined
    ziggymanpopo
    last edited by 15 Nov 2020, 00:38

    Is it possable my fanduct is Some how involved??

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    • undefined
      ziggymanpopo
      last edited by 15 Nov 2020, 00:43

      This post is deleted!
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      • undefined
        ziggymanpopo
        last edited by 15 Nov 2020, 00:44

        This post is deleted!
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        • undefined
          ziggymanpopo
          last edited by 15 Nov 2020, 00:47

          ![0_1605401214632_16054011707117591609653755072099.jpg](Uploading 100%)

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          • undefined
            fcwilt
            last edited by 15 Nov 2020, 00:49

            PLA with additives, like your gold PLA, cause problems with all-metal hotends like the M.

            Try, as an experiment, setting your retraction to 0.

            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
              ziggymanpopo
              last edited by 15 Nov 2020, 00:54

              I had an microseiss it didnt do it but ill take your word for it. So the pla isnt the issue its the plastic on the nozzle . I know it has somthing to do with. The pla because it doesnt do it with other filaments?? I mentioned the pla be ause it mught give someone an idea whats going on its one minor
              Left out item .... i think ????

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              • undefined
                ziggymanpopo
                last edited by 15 Nov 2020, 00:59

                its the small bits left on the print wher they dont belong there..![0_1605401972780_16054019487955853668630931210140.jpg](Uploading 100%) )the nozzle.pickes up the peices untill its covered all the way to the thereads of the nozzle 😳😳 no clue on why

                undefined 1 Reply Last reply 15 Nov 2020, 01:20 Reply Quote 0
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                  mrehorstdmd @ziggymanpopo
                  last edited by 15 Nov 2020, 01:20

                  @ziggymanpopo covered all the way to the threads sounds suspicious. Are you certain that the nozzle is screwed tightly to the heater block? If not, plastic can leak from the threads because of the pressure inside the hot-end.

                  https://drmrehorst.blogspot.com/

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                  • undefined
                    ziggymanpopo
                    last edited by 15 Nov 2020, 01:36

                    yes im sure that was my fist thought too

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                    • undefined
                      ziggymanpopo
                      last edited by 15 Nov 2020, 02:30

                      Ive also spent.hours watching it.slowly build up from the tip of the nozzle

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                      • undefined
                        jens55
                        last edited by 15 Nov 2020, 02:48

                        PETG is well known to collet nozzle crap that way. PLA has much less of an issue that way.
                        Sorry, I haven't got an answer/suggestion for you.

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                        • undefined
                          ziggymanpopo
                          last edited by 15 Nov 2020, 03:51

                          don't be the suggestion is appriciated,, it's try somthing else besides pteg,good call,, its just that i tried pla and was told it doesnt like all metal hotends W/additives
                          fact being with a high end hot end i should be able to run it no problem and my microswiss ate anything i gave it... that was my thought...ive even ran petg on my anycubic that cost 200$
                          so I'm pretty sure that it's a setting or a combo of settings hate being a newbie 😅 😄 lmao... im close to being able to tune this stuff to this degree

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                          • undefined
                            mrehorstdmd
                            last edited by 15 Nov 2020, 05:13

                            I've had problems with PETG building up on the nozzle. I have largely eliminated the problems by 1) reducing extrusion to 95% and 2) eliminating lift on retract. I also recently bought some filament that seems better than stuff I was previously using, but it could be that the other changes had more effect than switching filament brands.

                            https://drmrehorst.blogspot.com/

                            undefined 1 Reply Last reply 15 Nov 2020, 05:28 Reply Quote 1
                            • undefined
                              jens55 @mrehorstdmd
                              last edited by 15 Nov 2020, 05:28

                              @mrehorstdmd , those are the two things that I find necessary for PETG as well but I don't do them for PLA.

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                              • undefined
                                ziggymanpopo
                                last edited by 15 Nov 2020, 07:35

                                Thanks im gonna try some of the suggestions here and i ll leave this poast open.
                                I would like to add that i have not set all the g code parameters so there could also be an issue with things likenjerk p a or other things i woupd not know ???? Any input is appreciated. thanks all

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                                • undefined
                                  ziggymanpopo
                                  last edited by 15 Nov 2020, 11:01

                                  Had a thought
                                  Could i be pulling filament up before it cools because of too high of retractions... i had it sat at
                                  1.5 mm????

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                                  • undefined
                                    ziggymanpopo
                                    last edited by 16 Nov 2020, 03:40

                                    For refreance the 95% extrution solved most of the gunk on the nozzle thanks for the input guys 👍

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