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    Wither M851

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    • oliofundefined
      oliof
      last edited by

      Hi,
      On https://duet3d.dozuki.com/Wiki/G-Codes_not_implemented M851 is listed as not to be implemented and to use G31. Yet, M851 reports a Z offset on my CR20 running 2.05RC2. The Z offset in G31 is 2.52, M851 reports -2.52 ... confusing but probably to align with Marlin. X and Y offsets are not reported in M851 though.

      So, contrary to documentation, M851 seems to be (partially) implemented but un(der)documented. Does anyone know when it was introduced and if and how it should be used?

      <>RatRig V-Minion Fly Super5Pro RRF<> V-Core 3.1 IDEX k*****r <> RatRig V-Minion SKR 2 Marlin<>

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      • Dougal1957undefined
        Dougal1957
        last edited by

        see M851.

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        • T3P3Tonyundefined
          T3P3Tony administrators
          last edited by

          Thanks for pointing this out. I have removed this from the un-supported Gcodes and added it to the supported Gcodes. (briefly as G31 is the preferred command):

          https://duet3d.dozuki.com/Wiki/Gcode#Section_M851_Set_Z_Probe_Offset_Marlin_Compatibility

          www.duet3d.com

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