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    Mesh calibration always outside printbed

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    Tuning and tweaking
    mesh area compensation mesh compensation mesh leveling print move
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    • Vetiundefined
      Veti @vcaldas
      last edited by

      @vcaldas

      M208 X220 Y220 Z210 S0 ; set axis maxima
      G31 P500 X35 Y35 Z0.1 ; set Z probe trigger value, offset and trigger height
      M557 X35:200 Y35:200 S55 ; define mesh grid

      There is your problem 200+35 = 235

      that is larger than your bed.

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      • vcaldasundefined
        vcaldas
        last edited by

        @Veti Thanks for the suggestion.

        I changed to X50:150 S50 So it is now for sure smaller than the bed and is still having the same issue.
        It's not zeroing on X50 for mesh levelling, but on X0 Y0

        ..

        Vetiundefined 1 Reply Last reply Reply Quote 0
        • Vetiundefined
          Veti @vcaldas
          last edited by

          @vcaldas said in Mesh calibration always outside printbed:

          It's not zeroing on X50 for mesh levelling, but on X0 Y0

          what do you mean by zeroing?

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          • vcaldasundefined
            vcaldas
            last edited by

            Sorry for lack of clarification.
            Zeroing was the first point to be probed.

            I would expect the probe starts at X50 Y50 but it is going again to X0 Y0

            Vetiundefined 1 Reply Last reply Reply Quote 0
            • Vetiundefined
              Veti @vcaldas
              last edited by

              @vcaldas

              did you change y as well. it has the same problem as x

              did you restart after the changes?

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              • vcaldasundefined
                vcaldas
                last edited by

                Yes. Both X and Y and giving the same error.
                I restarted the machine, Checked the files, all is updated.

                I even put the printer and X40 Y40 and I would expect to be on X50 Y50... it went directly to X0 Y50...

                Not sure what to do...

                Vetiundefined 1 Reply Last reply Reply Quote 0
                • Vetiundefined
                  Veti @vcaldas
                  last edited by

                  @vcaldas
                  post your changed config

                  vcaldasundefined 1 Reply Last reply Reply Quote 0
                  • vcaldasundefined
                    vcaldas @Veti
                    last edited by

                    @Veti Found the issue!

                    G31 P500 X35 Y35 Z0.1 ; set Z probe trigger value, offset and trigger height

                    I was adding the offsets for X and Y as well and they should be 0
                    The new line becomes

                    G31 P500 X0 Y0 Z0.1 ; set Z probe trigger value, offset and trigger height

                    Problem solved!
                    Thanks for the patience and help!

                    Vetiundefined 1 Reply Last reply Reply Quote 0
                    • Vetiundefined
                      Veti @vcaldas
                      last edited by

                      @vcaldas said in Mesh calibration always outside printbed:

                      G31 P500 X0 Y0 Z0.1 ; set Z probe trigger value, offset and trigger height

                      no this is incorrect for a bltouch. this means that the nozzle would be the probing point. this will give you an incorrect mesh.

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                      • vcaldasundefined
                        vcaldas
                        last edited by

                        @Veti that's a very good point.

                        Fixing it to the correct values, there is no more error.
                        G31 P500 X-22 Y0 Z0.1

                        Thanks for pointing that out!

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