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    Question about Z Height

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    • okerchoundefined
      okercho
      last edited by

      Hi there!

      I'm tweaking my Z offset and I've found something I don't fully understand about the Z height reported by my duet.

      My layer height is 0.2, my Z offset is -0.05 (G31 X0 Y0 Z-0.05 P150), and I've added an offset of -0.02 with the Baby Steps… and the Z height is being reported as 0.20 when printing... but 0.2 - 0.05 - 0.02=0.13. How is that possible?

      I think I'm missing something here...

      P.S. I've those really tinny offsets because my impression is that it's not changing at all :S, it should be almost scratching the bed surface, and I'm having almost the same results even though I'm reducing the Z Offset...



      Okercho
      Custom Prusa i3 Hephestos with Duet Wi-Fi
      E3d V6 with Bondtech BMG DirectDrive and PrecisionPiezo Sensor
      Rebuilding Hypercube Evolution

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      • dc42undefined
        dc42 administrators
        last edited by

        The reported Z height is the height you commanded. Tool offsets, bed compensation and babystepping all get added to it before the appropriate commands are sent to the stepper motors. So babystepping does not show up in the display.

        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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        • okerchoundefined
          okercho
          last edited by

          Uhm, I will check today again, but I think that Z head position was reporting 0.22 before I applied the BabySteps.

          Thanks!

          Okercho
          Custom Prusa i3 Hephestos with Duet Wi-Fi
          E3d V6 with Bondtech BMG DirectDrive and PrecisionPiezo Sensor
          Rebuilding Hypercube Evolution

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