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    First repetitive clog

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    • Nylkos
      Nylkos last edited by Nylkos

      I have been printing for about a year and I am now getting, for the 1st time a repetitive clog...
      I clean it, works good for 1 minutes and then clog...

      Change that I have applied before the clogging started:

      • Upgraded from Duet 0.8.5 to Wifi
      • Changed E3d V6 aluminum heater block to stainless steel heater bllock

      But everything was working... until the 1st clog

      Here is what I tried... I cold plugged it, I torched it (nozzle and heat break), I changed my nozzle, the compound on the heat break and a new spool... I am running out of idea.

      Here are some pictures, I noticed that there seem to be a straw like filament residue...
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      Thank you for any assistance

      *Edit, resize images

      1 Reply Last reply Reply Quote 0
      • mrehorstdmd
        mrehorstdmd last edited by

        Steel doesn't conduct heat as well as aluminum- that's why it gets used for heatbreaks. The temperature may be too low at the filament because the heater block isn't transferring the heat to it. Why would you want a steel heater block? I can understand a steel nozzle for use with abrasive filaments, but the heater block should be as thermally conductive as possible.

        After you unclog it, can you see light through the nozzle?

        https://drmrehorst.blogspot.com/

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        • Nylkos
          Nylkos last edited by

          Yes, I can see the light and I changed the aluminum heater block because I broke it...
          I over tight the nozzle and heatbreak and ripped the threadout...
          thought that steel would be more viable for me.

          T3P3Tony 1 Reply Last reply Reply Quote 0
          • mrehorstdmd
            mrehorstdmd last edited by

            Go back to aluminum and don't tighten it so much. I put anti-seize compound on everything threaded into the heater block - it makes it easy to disassemble if I want to change nozzles, etc.

            https://drmrehorst.blogspot.com/

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            • T3P3Tony
              T3P3Tony administrators @Nylkos last edited by

              @nylkos the e3d documentation mentions using quite light force to tighten the nozzle:

              https://e3d-online.dozuki.com/Guide/Changing+Nozzles/45

              Ant this might be useful as well:

              https://www.youmagine.com/designs/nozzle-torque-wrench

              Duet Hardware Designer
              www.duet3d.com

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