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    Nozzle tapping print

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    • 4latheundefined
      4lathe
      last edited by

      I’m running 1.21 on a Duet wifi and an Ultibots D300vs+ delta. The nozzle seems to tap the print when returing from any z lift sort of move. The machine prints well and I don’t actually see any negative artifacts from this. I have a Seemecnc Rostock max v3 and nothing like this occurs. I just wondered if it had to do with acceleration or z move velocity specified in config.sys. I have checked everything for tightness and as I said the machine otherwise prints very well. This occurs at all layers of a print so not associated with first layer.
      I’d welcome any ideas. Thx

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      • dc42undefined
        dc42 administrators
        last edited by

        Can you post a video of this?

        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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        • 4latheundefined
          4lathe
          last edited by

          I’ll try to capture the sound as you cant see any of this. Thx

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          • 4latheundefined
            4lathe
            last edited by

            Captured a video in which you can hear the tap if turned up loud. Not sure of how to post video clip 8mb on this board though.

            JohnOCFIIundefined 1 Reply Last reply Reply Quote 0
            • JohnOCFIIundefined
              JohnOCFII @4lathe
              last edited by

              @4lathe said in Nozzle tapping print:

              Captured a video in which you can hear the tap if turned up loud. Not sure of how to post video clip 8mb on this board though.

              You'll need to post elsewhere, and link back. For video, YouTube is a natural fit.

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              • 4latheundefined
                4lathe
                last edited by

                https://youtu.be/GN_4bKT8vp4
                Here is the link. Thx

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                • dc42undefined
                  dc42 administrators
                  last edited by

                  I think the noise isn't the nozzle tapping the print, more likely a mechanical noise from the joints or from the extruder.

                  That's a high amount of Z lift you are using. I use 0.25mm.

                  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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                  • 4latheundefined
                    4lathe
                    last edited by

                    I had been using 4mm as that is whats in mhackney’s config on Kisslicer. .25 would ckear things but not assist on stringing lime 4 does, right?
                    When you listen to it live it sure sounds like tapping.

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                    • 4latheundefined
                      4lathe
                      last edited by

                      Like you David, mhackney thought it was something else making the noise. My E max velocity was set at 20000 and reduced that to 3600 and instantaneous change to 300 per mhackney’s settings.
                      The problem vanished so it may have been the Titan Aero making the noise.
                      My initial config.sys was from the Ultibots github.

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