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    Z-vobble or PA defects?

    Scheduled Pinned Locked Moved
    Tuning and tweaking
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    • Alucardiundefined
      Alucardi @JamesM
      last edited by Alucardi

      @JamesM in pid mode. I actually printed directly on my aluminum bed with some tape to rule out the heat bed. As soon as first layer was down it shut it self of.
      It is in PID though and it’s a silicone mat.

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      • Phaedruxundefined
        Phaedrux Moderator
        last edited by

        Z axis issues are tricky as you're at the mercy of the quality of the lead screws, nuts, and motors. It's hard to tell from the photos, but can you determine if there is a repetitive frequency to the ridges? If so, how far is the spacing?

        How is your Z axis setup? Is it aligned? Is it binding anywhere? Check some of the HEVO discussion places for other users insights.

        Z-Bot CoreXY Build | Thingiverse Profile

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        • Alucardiundefined
          Alucardi @Phaedrux
          last edited by

          @Phaedrux the lead screws are from a decent place, dold-mechatronik.de same with bearings and the rods. The steppers is a high torque e3d .9. As far as I can tell my z is aligned. The spacing is hard to measure but it is consistent although more visible at some spots. Look here
          I am not even going to ask on the hevo forum cause it’s just full of toxic bullshit. I asked about my bed ones. All just said it’s the bed can’t be anything else even though I at one point had a perfect straight bed. Kinda sad 13000 people have not figured out that the design makes it so the rods can bend like bananas.
          What I don’t understand is how PA can make it worse.

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          • Phaedruxundefined
            Phaedrux Moderator
            last edited by

            @Alucardi said in Z-vobble or PA defects?:

            What I don’t understand is how PA can make it worse.

            I suspect that it's more visible because the actual thickness of the extrusion will vary when using PA if it's not tuned perfectly. But if the seam was aligned I would think the extra thickness should also be aligned and not vary layer by layer like it seems to be. So I'm not sure what to think about that.

            Does the defect persist when using vase mode?

            Z-Bot CoreXY Build | Thingiverse Profile

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            • Alucardiundefined
              Alucardi @Phaedrux
              last edited by

              @Phaedrux i have not tried vasemode so I will give that one a try.

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              • Nuramoriundefined
                Nuramori
                last edited by

                What extruder are you using?

                Alucardiundefined 1 Reply Last reply Reply Quote 0
                • Williamundefined
                  William
                  last edited by William

                  I had that problem when I used Pursaslicer 2.1 and 2.2. Switching to Slic3r 1.3 reduced the issue.
                  Don't know why, all the settings were the same, even exported imported the .ini settings between slicers, no change. PA was .05 on both
                  Wish I could figure it out, I really like the Pursaslicer.

                  2020-04-15-1.jpg

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                  • Alucardiundefined
                    Alucardi @Nuramori
                    last edited by

                    @Nuramori bondtech. I had one with a v6 installed but that one is on my prusa now. So it’s new bondtech with a mosquito now. I had the issue on all. Maybe a bit more showing using the mosquito.

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                    • Alucardiundefined
                      Alucardi @William
                      last edited by Alucardi

                      @William your left cube is kinda similair to mine but yours is stil la bit more vissable.

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                      • Alucardiundefined
                        Alucardi @Phaedrux
                        last edited by Alucardi

                        @Phaedrux
                        It does sadly. I did however spot a small bent in on of my z motors. Not sure how that happen. It had some marks cause of bolts from a pulley slipped or something. So I sanded them down and while doing that I felt the shaft being bent like a banana. So I ordered a new motor from e3d and hope that’s it, but they have 1-2 weeks before an order is shipped 😕

                        Here is the vase. As always uploading a picture from iOS and safari seems broken.

                        ![0_1589352490260_E1A9F47D-FB52-4635-842E-4B3318CA9D30.jpeg](Uploading 100%)

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                        • Phaedruxundefined
                          Phaedrux Moderator
                          last edited by

                          At least you found a likely culprit.

                          Z-Bot CoreXY Build | Thingiverse Profile

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