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    z probe sensibility and mesh calibration with G29

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    • Tinchus
      Tinchus last edited by

      Hello. Im trying to use a Z probe atached directly to the noozle, it is a piezo sensor. It works really good as a zprobe, but Im funding problem for doing the mesh calibration routin because it is being triggered before the sensing starts. I get this error:

      Error: Z probe already triggered before probing move started

      I assume this has to be related on the fast movement between probing points since a single Z probe works perfect, so my question is if there is some way to make the mesh calibration routing to have less acceleration and jerk as the normal printing moves has? I dont see any parameter I can feed to G29 to achieve this
      Thanks in advance for the help

      jay_s_uk 1 Reply Last reply Reply Quote 0
      • jay_s_uk
        jay_s_uk @Tinchus last edited by

        @tinchus if you want to lower the speed for mesh levelling, you can do one of two things
        1- lower the T value in M558. That covers the travel speed between moves
        2- if running 3.3, create a file called mesh.g
        within it set new acceleration and jerk values
        then add G29 S0
        then reset your acceleration and jerk values.

        mesh.g will be called automatically when G29 is called

        Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is

        Tinchus fcwilt 2 Replies Last reply Reply Quote 1
        • Tinchus
          Tinchus @jay_s_uk last edited by

          @jay_s_uk taht worked! thank you!

          jay_s_uk 1 Reply Last reply Reply Quote 0
          • jay_s_uk
            jay_s_uk @Tinchus last edited by

            @tinchus which did you go with?

            Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is

            Tinchus 1 Reply Last reply Reply Quote 0
            • fcwilt
              fcwilt @jay_s_uk last edited by

              @jay_s_uk said in z probe sensibility and mesh calibration with G29:

              2- if running 3.3, create a file called mesh.g

              3.2.2 also supports mesh.g

              Frederick

              Printers: A FT-5 with the 713 upgrade bits. A custom MarkForged style. A small Utilmaker style and a CoreXY from kits. Various hotends. Using Duets (2 and 3) running 3.4.1

              jay_s_uk 1 Reply Last reply Reply Quote 1
              • jay_s_uk
                jay_s_uk @fcwilt last edited by

                @fcwilt very true! its been that long since I used 3.2.2

                Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is

                1 Reply Last reply Reply Quote 0
                • Tinchus
                  Tinchus @jay_s_uk last edited by

                  @jay_s_uk I created the mesh.g file, and modified accel and jer there for mesh calibration the restore the original values to normal after the G29 S0 command .

                  1 Reply Last reply Reply Quote 1
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