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    Mesh bed compensation warning

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    • bigsubundefined
      bigsub
      last edited by

      hello everyone, I'm having a problem probing my bed with a smart ir on a duet2 wifi.

      Warning: the height map has a substantial Z offset. Suggest use Z-probe to establish Z=0 datum, then re-probe the mesh.

      I use this version:
      Firmware: RepRapFirmware for Duet 2 WiFi/Ethernet 2.05.1 (2020-02-09b1)

      This is the portion of config.g with endstops and z-probe:

      ; Endstops
      M574 X1 Y1 S1 ;
      M574 Z1 S2 ;

      ; Z-Probe
      M558 P1 H5 F300 T4800 ;
      M557 X10:270 Y0:235 P07:07 ;
      G31 P500 X4 Y-0.5 Z2.45 ;

      In homez.g:
      G91 ;
      G1 H2 Z5 F4800 ;
      G90
      G1 X20 Y0 F4800 ; go to first probe point
      G30 ;

      Where could be the origin of this warning?

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      • Phaedruxundefined
        Phaedrux Moderator
        last edited by Phaedrux

        Please post your full config and homeall. And Bed.g if you use that as well.

        https://duet3d.dozuki.com/Wiki/Using_mesh_bed_compensation#Section_Establish_a_Z_0_datum_using_the_Z_probe

        Z-Bot CoreXY Build | Thingiverse Profile

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        • bigsubundefined
          bigsub
          last edited by

          homez.g homeall.g config.g bed.g

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          • Phaedruxundefined
            Phaedrux Moderator
            last edited by

            @bigsub said in Mesh bed compensation warning:

            Suggest use Z-probe to establish Z=0 datum, then re-probe the mesh.

            Have you redone your mesh lately?

            Z-Bot CoreXY Build | Thingiverse Profile

            bigsubundefined 1 Reply Last reply Reply Quote 0
            • bigsubundefined
              bigsub @Phaedrux
              last edited by

              @Phaedrux said in Mesh bed compensation warning:

              Have you redone your mesh lately?

              Five minutes ago.

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              • Phaedruxundefined
                Phaedrux Moderator
                last edited by

                Try moving your homing position to place the probe at the center of the bed.

                Are you using G32 (bed.g) to start the mesh probing?

                Z-Bot CoreXY Build | Thingiverse Profile

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                • bigsubundefined
                  bigsub @Phaedrux
                  last edited by

                  @Phaedrux said in Mesh bed compensation warning:

                  Try moving your homing position to place the probe at the center of the bed.

                  Are you using G32 (bed.g) to start the mesh probing?

                  Ok for homing position.
                  I use G29.

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                  • Phaedruxundefined
                    Phaedrux Moderator
                    last edited by

                    Try using G32 to call it instead because your bed.g has M561 to clear the previous heightmap first.

                    Z-Bot CoreXY Build | Thingiverse Profile

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