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Always different Z probe trigger height...

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  • undefined
    SPAX
    last edited by SPAX 31 Aug 2019, 08:28

    Hello everybody.
    I still can't start to print normally...First layer very poor. I have need to Baby Stepping +-1mm.
    When I tying to calibrate the Z probe trigger height, I have always different value...
    What I do:

    1. Jog the nozzle down until it is just gripping a sheet of paper.
    2. G92 Z0
    3. Jog the head up by 5 to 5.8mm
    4. G30 S-1
      After repeat steps 1-4 for the other XY positions.

    And received this results:

    X0 Y0 3.781 3.775
    X60 Y130 3,671 3,658
    X-50 Y-100 3.491 3.485
    X100 Y-110 3.529 3.516

    Then I try to Auto Calibrate...

    13:02:54M666
    Endstop adjustments X0.08 Y-0.61 Z0.53, tilt X0.00% Y0.00%
    13:02:36M665
    Diagonals 484.350:484.350:484.350, delta radius 231.654, homed height 425.792, bed radius 190.0, X 0.943°, Y 0.626°, Z 0.000°
    13:02:23G32
    Calibrated 6 factors using 16 points, deviation before 0.176 after 0.107

    13:03:45M666
    Endstop adjustments X0.43 Y-0.84 Z0.41, tilt X0.00% Y0.00%
    13:03:43M665
    Diagonals 484.350:484.350:484.350, delta radius 231.967, homed height 425.853, bed radius 190.0, X 0.504°, Y 0.035°, Z 0.000°
    13:03:40G32
    Calibrated 6 factors using 16 points, deviation before 0.233 after 0.066

    13:04:45M666
    Endstop adjustments X0.13 Y-0.55 Z0.42, tilt X0.00% Y0.00%
    13:04:44M665
    Diagonals 484.350:484.350:484.350, delta radius 231.514, homed height 426.220, bed radius 190.0, X 1.075°, Y 0.688°, Z 0.000°
    13:04:41G32
    Calibrated 6 factors using 16 points, deviation before 0.172 after 0.083

    13:06:17M666
    Endstop adjustments X0.53 Y-1.02 Z0.49, tilt X0.00% Y0.00%
    13:06:15M665
    Diagonals 484.350:484.350:484.350, delta radius 232.251, homed height 425.637, bed radius 190.0, X 0.360°, Y 0.070°, Z 0.000°
    13:06:12G32
    Calibrated 6 factors using 16 points, deviation before 0.225 after 0.066

    Firmware Version: 2.03 (2019-06-13b2)
    WiFi Server Version: 1.23
    Web Interface Version: 1.22.6

    M111 S0 ; Debugging off
    G21 ; Work in millimetres
    G90 ; Send absolute coordinates...
    M83 ; ...but relative extruder moves
    M555 P2 ; Set firmware compatibility to look like Marlin

    M665 M665 L484.350:484.350:484.350 R231.324 H426.042 B190.0 X1.009 Y1.687 Z0.000 ; Set diagonal rod length, delta radius, printable radius and homed height
    M666 X-0.179 Y-0.944 Z1.123 A0.00 B0.00 ; Put your endstop adjustments here, or let auto calibration find them
    M208 Z0.1 S1 ; Set minimum Z

    ; Endstops
    M574 X2 Y2 Z2 S1 ; Set active high endstops
    M558 P1 X0 Y0 Z0 F300 H5 T6000 ; Set Z probe type to unmodulated and the dive height + speeds
    G31 P500 X15 Y15 Z3,6 ; Set Z probe trigger value, offset and trigger height
    M557 R135 S14 ; Define mesh grid
    M581 T2 E1 S0 ; Endstop E0 EMERGENCY

    ; Drives
    M569 P0 S1 ; Drive 0 goes forwards
    M569 P1 S1 ; Drive 1 goes forwards
    M569 P2 S1 ; Drive 2 goes forwards
    M569 P3 S1 ; Drive 3 goes forwards
    M569 P4 S1 ; Drive 4 goes forwards
    M92 X160 Y160 Z160 ; Set steps per mm
    M92 E859 ; Set steps per mm Titan flying ABS &PLA
    M350 X16 Y16 Z16 E16 I1 ; Configure microstepping without (I1 with) interpolation
    M566 X1200 Y1200 Z1200 E900 ; Set maximum instantaneous speed changes (mm/min) (jerk)
    M203 X12000 Y12000 Z12000 E5000 ; Set maximum speeds (mm/min)
    M201 X3500 Y3500 Z3500 E1200 ; Set accelerations (mm/s^2) Было по 2000
    M906 X2000 Y2000 Z2000 E1200 I10 ; Set motor currents (mA) and motor idle factor in per cent
    M84 S30 ; Set idle timeout
    M572 D0 S0.2 ; Pressure advance

    undefined 1 Reply Last reply 31 Aug 2019, 14:57 Reply Quote 0
    • undefined
      Veti
      last edited by 31 Aug 2019, 08:57

      @spax said in Always different Z probe trigger height...:

      Firmware Version: 2.03 (2019-06-13b2)

      there is a bug in 2.03 with delta homing.
      see bugfix in 2.04RC1
      https://github.com/dc42/RepRapFirmware/blob/dev/WHATS_NEW.md

      undefined 1 Reply Last reply 31 Aug 2019, 13:10 Reply Quote 0
      • undefined
        SPAX @Veti
        last edited by 31 Aug 2019, 13:10

        @veti, thanks, I'll try to update now.

        1 Reply Last reply Reply Quote 0
        • undefined
          SPAX
          last edited by 31 Aug 2019, 14:54

          New flashing did not help...
          Yes, now Auto Calibrating going good, but when I start to print the nozzle so high above bed...approx 1.5mm...
          It is mean what Auto Calibrating measure wrong homed height.

          19:50:58G32
          Calibrated 6 factors using 16 points, deviation before 0.061 after 0.060
          19:50:05G32
          Calibrated 6 factors using 16 points, deviation before 0.061 after 0.060

          1 Reply Last reply Reply Quote 0
          • undefined
            Veti @SPAX
            last edited by 31 Aug 2019, 14:57

            @spax said in Always different Z probe trigger height...:

            G31 P500 X15 Y15 Z3,6 ; Set Z probe trigger value, offset and trigger height

            duet uses . and not ,

            please read
            https://duet3d.dozuki.com/Wiki/Test_and_calibrate_the_Z_probe
            and test your z offset

            undefined 1 Reply Last reply 31 Aug 2019, 14:59 Reply Quote 1
            • undefined
              SPAX @Veti
              last edited by SPAX 31 Aug 2019, 14:59

              @veti Ofcourse I tested and change it in config.g

              1 Reply Last reply Reply Quote 0
              • undefined
                Veti
                last edited by 31 Aug 2019, 15:00

                how are you saving the G32 results?

                undefined 1 Reply Last reply 31 Aug 2019, 15:06 Reply Quote 0
                • undefined
                  SPAX @Veti
                  last edited by 31 Aug 2019, 15:06

                  @veti said in Always different Z probe trigger height...:

                  how are you saving the G32 results?

                  M500

                  1 Reply Last reply Reply Quote 0
                  • undefined
                    Veti
                    last edited by 31 Aug 2019, 15:07

                    you dont have a M501 in your config. so those will be ignored.

                    undefined 1 Reply Last reply 31 Aug 2019, 15:12 Reply Quote 0
                    • undefined
                      SPAX @Veti
                      last edited by SPAX 31 Aug 2019, 15:12

                      @veti ouh man, I pasted not full config, special for low text... )))

                      1 Reply Last reply Reply Quote 0
                      • undefined
                        SPAX
                        last edited by 31 Aug 2019, 15:14

                        Baby stepping don't worked too!
                        I set -2mm, but nozzle don't changed position....

                        1 Reply Last reply Reply Quote 0
                        • undefined
                          Veti
                          last edited by 31 Aug 2019, 15:26

                          @spax said in Always different Z probe trigger height...:

                          M208 Z0.1 S1 ; Set minimum Z

                          because you disallowed it

                          undefined 1 Reply Last reply 31 Aug 2019, 18:17 Reply Quote 0
                          • undefined
                            SPAX @Veti
                            last edited by SPAX 31 Aug 2019, 18:17

                            @veti But before that, everything worked well ... really don't know what happen...
                            And why is Z position 0.1 above the bed by 2 mm. I think Auto Calibration don't work well..

                            1 Reply Last reply Reply Quote 0
                            • undefined
                              Veti
                              last edited by 31 Aug 2019, 18:24

                              @spax said in Always different Z probe trigger height...:

                              And why is Z position 0.1 above the bed by 2 mm.

                              that would indicate a wrong z trigger height

                              undefined 1 Reply Last reply 31 Aug 2019, 18:28 Reply Quote 0
                              • undefined
                                SPAX @Veti
                                last edited by SPAX 31 Aug 2019, 18:28

                                @veti I do all what in first post and correct config.g after ....

                                1 Reply Last reply Reply Quote 0
                                • undefined
                                  Veti
                                  last edited by 31 Aug 2019, 18:31

                                  does your probe have problems?

                                  check the repeatability

                                  https://forum.duet3d.com/topic/6962/m48-measure-z-probe-repeatability-and-print-to-serial-output

                                  undefined 1 Reply Last reply 31 Aug 2019, 18:41 Reply Quote 0
                                  • undefined
                                    SPAX @Veti
                                    last edited by 31 Aug 2019, 18:41

                                    @veti said in Always different Z probe trigger height...:

                                    does your probe have problems?

                                    I think no.

                                    check the repeatability

                                    It is repeatability

                                    M98 P"0:/macros/M48"
                                    G32 bed probe heights: 0.088 0.095 0.088 0.088 0.088 0.095 0.095 0.088 0.101 0.095, mean 0.092, deviation from mean 0.004

                                    1 Reply Last reply Reply Quote 0
                                    • undefined
                                      Veti
                                      last edited by 31 Aug 2019, 18:46

                                      hmm?
                                      problem with your endstops?
                                      do a the macro.
                                      then home with G28 and doe the macro again

                                      undefined 1 Reply Last reply 31 Aug 2019, 18:58 Reply Quote 0
                                      • undefined
                                        SPAX @Veti
                                        last edited by 31 Aug 2019, 18:58

                                        @veti omg....
                                        G31 P500 X15 Y15 Z3,6
                                        I wrote a comma instead of a dot
                                        Now I heat a bed and try again auto calibrate.

                                        undefined 1 Reply Last reply 31 Aug 2019, 19:20 Reply Quote 0
                                        • undefined
                                          SPAX
                                          last edited by 31 Aug 2019, 19:10

                                          Ok, now started print cube 20x20, first layer is well)

                                          1 Reply Last reply Reply Quote 0
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