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    heightmap how much roughness is acceptable?

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    • yatinsdundefined
      yatinsd
      last edited by yatinsd

      i recently calibrated bed and ran G29, this is the result it gave. the printing result is not good(bed level probably). any suggestion?0_1543131638789_Capture +3.JPG

      JoergS5undefined 1 Reply Last reply Reply Quote 0
      • Mangy_Dogundefined
        Mangy_Dog
        last edited by Mangy_Dog

        And I thought my bow was bad.....

        Honestly that is a bad bed... Sorry

        Is your build plate clean? Fully supported? No surface pealing away?

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        • JoergS5undefined
          JoergS5 @yatinsd
          last edited by JoergS5

          @yatinsd before you throw away your bed, you should consider that there are some other possible reasons for the result than an uneven bed. Maybe measuring is untrustworthy because of the Z position of the probe is not stable. You can provide a picture of your printer and information about the probe (which type, configuration file) to give you hints what to check.

          The image(s) should show: probe and how it is fixed, bed and how it is fixed, Z movement and connection to frame and stepper.

          If you have something like a straightedge/hairline, you can check whether the results of the probing makes sense.

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          • Mikeundefined
            Mike
            last edited by

            That's... Close to unprintable if that is actually representative of what your bed looks like. I'd suggest to try and actually measure if those results are correct. Do a paper test on each of those probe points and compare it to the results you get in the heightmap.

            Based on what you get, I'd recommend either switching the bed or fixing the probe.

            1 Reply Last reply Reply Quote 0
            • yatinsdundefined
              yatinsd
              last edited by

              0_1543217700339_15432176388646820575109070747872.jpg I have done manual calibration. But I think effector tilt is behind this.! The offset of the probe is -30,-20 .

              Stephen6309undefined 1 Reply Last reply Reply Quote 0
              • Mangy_Dogundefined
                Mangy_Dog
                last edited by

                Oh it's a delta, OK so might not be the bed at all but the delta setup... But I dint know anywhere near about deltas to suggest what could cause it...

                Before throwing the bed away, you could also put glass on it... That might take up the slack on a warped bed... But if it is 1mm deviations, might need some silicon heat transfer pads in the low points.

                AlexLinundefined 1 Reply Last reply Reply Quote 0
                • AlexLinundefined
                  AlexLin @Mangy_Dog
                  last edited by

                  @mangy_dog guess he is using a inductive sensor ...so then glass will not help

                  Mangy_Dogundefined 1 Reply Last reply Reply Quote 0
                  • Stephen6309undefined
                    Stephen6309 @yatinsd
                    last edited by

                    @yatinsd Make sure you are not probing at a location with a different metal, like steel mounting screws or steel underneath.

                    I get that type of heightmap when probing near steel on my aluminum bed.

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                    • Mangy_Dogundefined
                      Mangy_Dog @AlexLin
                      last edited by

                      @alexlin yeah 😞

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