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    Dc42 ir probe on the way

    Scheduled Pinned Locked Moved
    Tuning and tweaking
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    • Torroundefined
      Torro
      last edited by

      Hi,

      i have problems to get the compensation to work.

      i created the heightmap

      0_1547722934640_heightmap.jpg

      added a G92 S1 to the start script of s3d

      M106 P0 S0 ; Stop Part Cooling Fan
      G28 ; home all axes
      G29 S1 ; load heightmap
      G91 ; relative mode
      G1 E52 F400 ; Fill Nozzle
      G90 ; absolute Mode
      M572 D0 S0.1 ; Pressure advance

      and get this result:

      0_1547722995932_image.jpg

      you can see that it´s somehow similar. i have no idea what to do next.

      config.g:

      ; 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
      M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
      M92 X80.00 Y80.00 Z160 E420.00 ; Set steps per mm
      M566 X900.00 Y900.00 Z12.00 E120.00 ; Set maximum instantaneous speed changes (mm/min)
      M203 X20000.00 Y20000.00 Z4000.00 E4000.00 ; Set maximum speeds (mm/min)
      M201 X1000.00 Y1000.00 Z1000.00 E10000.00 ; Set accelerations (mm/s^2)
      M906 X800.00 Y800.00 Z800.00 E800.00 I30 ; Set motor currents (mA) and motor idle factor in per cent
      M84 S300 ; Set idle timeout

      ; Axis Limits
      M208 X0 Y-1 Z0 S1 ; Set axis minima
      M208 X240 Y222 Z278 S0 ; Set axis maxima

      ; Endstops
      M574 X1 Y1 S0 ; Set active high endstops

      ; Z-Probe
      M574 Z1 S2
      M558 P1 H5 F120 T6000 A3
      G31 P500 X0 Y50 Z0.4
      M557 X20:220 Y70:220 S20

      homeall.g
      G91 ; relative positioning
      G1 S1 X-300 Y-300 F5000 ; move quickly to X or Y endstop and stop there (first pass)
      G1 S1 X-206 ; home X axis
      G1 S1 Y-300 ; home Y axis
      G1 X5 Y5 F6000 ; go back a few mm
      G1 S1 X-206 F360 ; move slowly to X axis endstop once more (second pass)
      G1 S1 Y-206 ; then move slowly to Y axis endstop
      G1 S1 Z-300 F3000 ; move Z down stopping at the endstop
      G1 Z4 F200 ; move slowly 4mm in the +Z direction
      G90 ; absolute positioning
      G30 X120 Y110 <- That´s NOT working it probes at X/Y min

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      • aidarundefined
        aidar
        last edited by

        You better send probe to X120 Y110 by G1, so
        G1 X120 Y110
        G30

        Torroundefined 1 Reply Last reply Reply Quote 0
        • Torroundefined
          Torro @aidar
          last edited by

          @aidar said in Dc42 ir probe on the way:

          You better send probe to X120 Y110 by G1, so
          G1 X120 Y110
          G30

          done & works! thanks

          i took the G29 S1 out of the start script. before starting the print, i activated the mesh per DWC "compensation&calibration". so it says "compensation in use:mesh"

          i printed a cube with 180x180mm and observed the z motors. they stand still.

          1 Reply Last reply Reply Quote 0
          • Torroundefined
            Torro
            last edited by

            tried this start script:

            M106 P0 S0 ; Stop Part Cooling Fan
            G28 ; home all axes
            G29
            G91 ; relative mode
            G1 E52 F400 ; Fill Nozzle
            G90 ; absolute Mode

            same problem, the first layer looks like on the picture above.
            DWC says "mesh in use"

            1 Reply Last reply Reply Quote 0
            • aidarundefined
              aidar
              last edited by

              Well, seems we have to start from basic: what version of firmware you use?

              1 Reply Last reply Reply Quote 0
              • Torroundefined
                Torro
                last edited by

                Duet Web Control 2.0.0-RC3

                Electronics: Duet WiFi 1.02 or later
                Firmware: RepRapFirmware for Duet 2 WiFi/Ethernet 2.02(RTOS) (2018-12-24b1)
                Duet WiFi Server Version: 1.22

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                • Phaedruxundefined
                  Phaedrux Moderator
                  last edited by

                  What does a print look like with mesh disabled?

                  Z-Bot CoreXY Build | Thingiverse Profile

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                  • Torroundefined
                    Torro
                    last edited by

                    5 minutes please

                    1 Reply Last reply Reply Quote 0
                    • Torroundefined
                      Torro
                      last edited by

                      it´s the same. left side (Ymin) so close, that there is no layer, right side (Ymax) so far away, that the layer doesn´t stick to the bed

                      1 Reply Last reply Reply Quote 0
                      • Phaedruxundefined
                        Phaedrux Moderator
                        last edited by

                        @torro said in Dc42 ir probe on the way:

                        M201 X1000.00 Y1000.00 Z1000.00 E10000.00 ; Set accelerations (mm/s^2)

                        Try reducing the Z acceleration from 1000 to 100. I wonder if it's trying to compensate but trying to move too quickly and not moving at all due to binding.

                        Does the Z axis move properly otherwise?

                        Z-Bot CoreXY Build | Thingiverse Profile

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                        • Torroundefined
                          Torro
                          last edited by

                          Z axis works fine.
                          tested with acceleration 100, same behavior

                          Phaedruxundefined 1 Reply Last reply Reply Quote 0
                          • aidarundefined
                            aidar
                            last edited by

                            Have you tryied manual bed leveling?
                            https://duet3d.dozuki.com/Wiki/Using_the_manual_bed_levelling_assistant

                            Torroundefined 1 Reply Last reply Reply Quote 0
                            • Phaedruxundefined
                              Phaedrux Moderator @Torro
                              last edited by

                              @torro One other variable we can control for is that you're using DWC 2. Just incase it's causing an issue, try reverting to the last main release 1.22.6.

                              I'm doubtful it's the problem since running M122 shows mesh is active.

                              If that doesn't work I think I would re-run the G29 fresh and print immediately afterwards to see if there was maybe just a problem with the old heightmap.

                              Z-Bot CoreXY Build | Thingiverse Profile

                              Torroundefined 2 Replies Last reply Reply Quote 0
                              • Torroundefined
                                Torro @Phaedrux
                                last edited by

                                @phaedrux said in Dc42 ir probe on the way:

                                If that doesn't work I think I would re-run the G29 fresh and print immediately afterwards to see if there was maybe just a problem with the old heightmap.

                                that´s already tested.

                                1 Reply Last reply Reply Quote 0
                                • Torroundefined
                                  Torro
                                  last edited by

                                  Web Interface Version: 1.22.6

                                  same problem ☹

                                  1 Reply Last reply Reply Quote 0
                                  • Torroundefined
                                    Torro @Phaedrux
                                    last edited by

                                    @phaedrux said in Dc42 ir probe on the way:

                                    If that doesn't work I think I would re-run the G29 fresh and print immediately afterwards to see if there was maybe just a problem with the old heightmap.

                                    i had the G29 in the start script from the slicer after homing

                                    1 Reply Last reply Reply Quote 0
                                    • Torroundefined
                                      Torro @aidar
                                      last edited by

                                      @aidar said in Dc42 ir probe on the way:

                                      Have you tryied manual bed leveling?

                                      not yet, i´ll try

                                      1 Reply Last reply Reply Quote 0
                                      • Torroundefined
                                        Torro
                                        last edited by

                                        Manual corrections required: 0.00 turn up (0.00mm) 0.41 turn down (0.21mm) 0.10 turn up (-0.05mm) 0.61 turn down (0.31mm)

                                        seems to work

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                                        • Torroundefined
                                          Torro
                                          last edited by

                                          19:54:37
                                          G32
                                          Manual corrections required: 0.00 turn up (0.00mm) 0.01 turn up (-0.01mm) 0.22 turn up (-0.11mm) 0.53 turn down (0.27mm)

                                          19:53:32
                                          G32
                                          Manual corrections required: 0.00 turn up (0.00mm) 0.12 turn down (0.06mm) 0.07 turn up (-0.03mm) 0.38 turn down (0.19mm)

                                          can´t get it better

                                          1 Reply Last reply Reply Quote 0
                                          • Torroundefined
                                            Torro
                                            last edited by

                                            next round

                                            Did another G29, added G29 S1 in config.g
                                            in DWC, mesh compensation in use.

                                            at Xmax Z0, paper is loose. babystepping offset -0.1 paper is gripped
                                            at Xmin Z0, paper is gripped, Z+0.15 papier is loose.
                                            in the middle of the bed, where G30 in homeall.g is done, the distance from the nozzle to the bed is fine.

                                            no compensation. should it compensate already at this time?

                                            just to test, i added X0 Y0 Z1 to the M558 command

                                            M558 P1 X0 Y0 Z1 H5 F120 T6000 A3

                                            still no compensation.

                                            did a macro with

                                            G30 S-1
                                            G1 Z10
                                            G30 S-1
                                            ...... repeated 10 times

                                            to check, if the probe is ok. i´m getting results between 0.356 and 0.363mm @Xmax and 0.325 and 0.331mm @ Xmin

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