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    First layer gets ignored

    Tuning and tweaking
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    • Sitnetz
      Sitnetz last edited by

      Hi guys,

      I am new in the duet community, just converted my first printer to a duet(ender 3).
      Please excuse my broken English...

      Got the printer to home as intended, so when I "home all" the nozzle is a sheet of paper away from the bed. But if I start a print the nozzle is at 0.2mm but should be at 0mm. I am a bit scared to set a offset to the nozzle because I think it would crash into the bed while homing. I am using an end stop switch at the z-axis. So no probe installed.

      What do I have to do to get the nozzle to 0mm at the start of a print?

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      • DocTrucker
        DocTrucker last edited by

        That's working correctly.

        Alive: 1 Ormerodish machines. 1 Custom Cantilever. 3 P3Steel. 1 Ciclopish scanner. In build: 1 P3Steel. Controllers: 2 Duet 2 , 2 D0.6, 1 D0.8.5, 1 D3 v0.5, 1 RAMPS/DRV8825, 1 Uno/Scan Card.

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        • DocTrucker
          DocTrucker last edited by

          It the extruder was at z=0 it would most likely drag the nozzle over the print surface.

          In addition the first layer height would be 0, which would mean there is nothing to extrude.

          Alive: 1 Ormerodish machines. 1 Custom Cantilever. 3 P3Steel. 1 Ciclopish scanner. In build: 1 P3Steel. Controllers: 2 Duet 2 , 2 D0.6, 1 D0.8.5, 1 D3 v0.5, 1 RAMPS/DRV8825, 1 Uno/Scan Card.

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          • Sitnetz
            Sitnetz last edited by

            That means that I have to set my nozzle to bump slightly against the bed?(does not make sense to me)
            Because when I home the hight is correct and when I start a print the nozzle is to high

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            • DocTrucker
              DocTrucker last edited by

              When you start the print the nozzle height should be at the height of the first layer which is typically about 0.2-0.3mm depending on your slicer settings.

              The print should not start with the nozzle touching the bed.

              Your probe offset should be set so that when z=0 the nozzle just touches the bed.

              Alive: 1 Ormerodish machines. 1 Custom Cantilever. 3 P3Steel. 1 Ciclopish scanner. In build: 1 P3Steel. Controllers: 2 Duet 2 , 2 D0.6, 1 D0.8.5, 1 D3 v0.5, 1 RAMPS/DRV8825, 1 Uno/Scan Card.

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