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    M675 not stopping when reaching X max

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    • Menthosundefined
      Menthos
      last edited by

      Hi, hopefully somebody knows what I’m doing wrong. I’m using the following to probe the cavity of an openbuilds XYZ probe:

      M675 X R8 F100 P0 ; Find center in X axis
      M675 Y R8 F100 P0 ; Find center in Y axis

      …and it moves and senses the X min, stops and then moves to sense the X max, but doesn’t stop. I’m hitting the estop.

      I can see the XYZ probe registering the contact (green light)

      Fingers crossed it’s something seen before.

      Menthosundefined 1 Reply Last reply Reply Quote 0
      • Menthosundefined
        Menthos @Menthos
        last edited by

        Sorted that bit - the 'R' setting was way too high... set it to 2 and that part works.

        dc42undefined 1 Reply Last reply Reply Quote 1
        • dc42undefined
          dc42 administrators @Menthos
          last edited by

          @menthos I think the R value only needs to be high enough to guarantee that the probe stops registering contact after moving away from the minimum.

          Duet WiFi hardware designer and firmware engineer
          Please do not ask me for Duet support via PM or email, use the forum
          http://www.escher3d.com, https://miscsolutions.wordpress.com

          Menthosundefined 1 Reply Last reply Reply Quote 1
          • dc42undefined dc42 marked this topic as a question
          • dc42undefined dc42 has marked this topic as solved
          • Menthosundefined
            Menthos @dc42
            last edited by

            @dc42 Ah, ok, that would make sense... I'd read that as being the amount of travel it did to 'find' the edge.

            Thanks!!

            dc42undefined 1 Reply Last reply Reply Quote 0
            • dc42undefined
              dc42 administrators @Menthos
              last edited by

              @menthos I have updated the documentation at https://docs.duet3d.com/en/User_manual/Reference/Gcodes#m675-find-center-of-cavity.

              Duet WiFi hardware designer and firmware engineer
              Please do not ask me for Duet support via PM or email, use the forum
              http://www.escher3d.com, https://miscsolutions.wordpress.com

              1 Reply Last reply Reply Quote 0
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