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    Am I using the G30 command correctly?

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    • Dogma2kundefined
      Dogma2k
      last edited by

      I noticed with my printer (with 3 Z axes) that when I execute G32 (to get the bed straight) and then do a mesh, the measuring points are always below the grid and a warning appears in the console.
      Yesterday I discovered that if after aligning the 3 axes I make a G30 in the middle of the bed and then run the mesh, the measuring points are on the grid (with minor deviations, of course).

      My question would now be do I have to do a G32 (align Z axes) and a G29 S1 also a G30 before each print start or would e.g. another G28 Z in the middle be enough?

      thanks in advance

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      • fcwiltundefined
        fcwilt
        last edited by fcwilt

        @dogma2k

        Hi,

        You need to do a single G30 in the center of the bed

        • before creating a height map with G29 or G29 S0
        • before loading a height map with G29 S1
        • after leveling the bed with G32

        Printers: a small Utilmaker style, a small CoreXY and a E3D MS/TC setup. Various hotends. Using Duet 3 hardware running 3.4.6

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        • Dogma2kundefined
          Dogma2k
          last edited by

          @fcwilt
          Thank you, that's a clear statement that I know exactly how to use the G30 👍

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