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    Strange BLTouch issue. Hightmap it off while printing

    Scheduled Pinned Locked Moved Solved
    Tuning and tweaking
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    • RocketPatundefined
      RocketPat
      last edited by RocketPat

      starting g-code, i am using the Prusa slicer

      M107
      ;M190 S45	  ;set bed temperature and wait for it to be reached
      G28          ;Home axis
      G29
      
      M109 S210 ;
      M107         ; Turn layer fan off
      G21          ; Set to metric change to G20 if you want Imperial
      G90          ; Force coordinates to be absolute relative to the origin
      
      G0 X0 Y0 F9000 ; Go to front
      G0 Z0.15 ; Drop to bed
      G92 E0 ; zero the extruded length
      G1 X80 E6 F780.000 ; Extrude filament in a 8cm line
      G92 E0 ; zero the extruded length
      G1 E-1 F780.000 ; Retract a little
      G1 X80 F4000 ; Quickly wipe away from the filament line
      G1 Z0.3 ; Raise and begin printing.
      

      config.g

      ; Configuration file for Duet WiFi (firmware version 3)
      ; executed by the firmware on start-up
      ;
      ; generated by RepRapFirmware Configuration Tool v3.1.4 on Sat Oct 03 2020 22:18:40 GMT+0200 (Mitteleuropäische Sommerzeit)
      
      ; General preferences
      G90                                            ; send absolute coordinates...
      M83                                            ; ...but relative extruder moves
      M550 P"Pat's Printer"                          ; set printer name
      
      ; Network
      M551 P"******"                                ; set password
      M552 S1                                        ; enable network
      M586 P0 S1                                     ; enable HTTP
      M586 P1 S0                                     ; disable FTP
      M586 P2 S0                                     ; disable Telnet
      
      ; Drives
      M569 P0 S0                                     ; physical drive 0 goes backwards
      M569 P1 S0                                     ; physical drive 1 goes backwards
      M569 P2 S0                                     ; physical drive 2 goes backwards
      M569 P3 S1                                     ; physical drive 3 goes forwards
      M584 X0 Y1 Z2 E3                               ; set drive mapping
      M350 X16 Y16 Z16 E16 I1                        ; configure microstepping with interpolation
      M92 X80.00 Y80.00 Z800.00 E830              ; set steps per mm
      M566 X900.00 Y900.00 Z12.00 E300.00            ; set maximum instantaneous speed changes (mm/min)
      M203 X6000.00 Y6000.00 Z180.00 E1500.00        ; set maximum speeds (mm/min)
      M201 X500.00 Y500.00 Z20.00 E5000.00           ; set accelerations (mm/s^2)
      M906 X600 Y600 Z600 E600 I30                   ; set motor currents (mA) and motor idle factor in per cent
      M84 S300                                       ; Set idle timeout
      
      ; Axis Limits
      M208 X0 Y0 Z0 S1                               ; set axis minima
      M208 X215 Y250 Z380 S0                         ; set axis maxima
      
      ; Endstops
      M574 X1 S1 P"xstop"                            ; configure active-high endstop for low end on X via pin xstop
      M574 Y1 S1 P"ystop"                            ; configure active-high endstop for low end on Y via pin ystop
      M574 Z1 S2                                     ; configure Z-probe endstop for low end on Z
      
      ; Z-Probe
      M950 S0 C"exp.heater3"                         ; create servo pin 0 for BLTouch
      M558 P9 C"^zprobe.in" H5 F120 T6000            ; set Z probe type to bltouch and the dive height + speeds
      G31 P500 X-16 Y-42 Z2.38                       ; set Z probe trigger value, offset and trigger height
      M557 X10:210 Y0:250 S50                       ; define mesh grid
      
      ; Heaters
      M308 S0 P"bedtemp" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin bedtemp
      M950 H0 C"bedheat" T0                          ; create bed heater output on bedheat and map it to sensor 0                           ; enable bang-bang mode for the bed heater and set PWM limit
      M140 H0                                        ; map heated bed to heater 0
      M143 H0 S60                                    ; set temperature limit for heater 0 to 60C
      M308 S1 P"e0temp" Y"thermistor" T100000 B4138  ; configure sensor 1 as thermistor on pin e0temp
      M950 H1 C"e0heat" T1                           ; create nozzle heater output on e0heat and map it to sensor 1
      M307 H1 B0 S1.00                               ; disable bang-bang mode for heater  and set PWM limit
      
      ; Fans
      M950 F0 C"fan0" Q100                           ; create fan 0 on pin fan0 and set its frequency
      M106 P0 S0 H-1                                 ; set fan 0 value. Thermostatic control is turned off
      M950 F1 C"fan1" Q500                           ; create fan 1 on pin fan1 and set its frequency
      M106 P1 S1 H1 T45                              ; set fan 1 value. Thermostatic control is turned on
      
      ; Tools
      M563 P0 D0 H1 F0                               ; define tool 0
      G10 P0 X0 Y0 Z0                                ; set tool 0 axis offsets
      G10 P0 R0 S0                                   ; set initial tool 0 active and standby temperatures to 0C
      
      ; Custom settings are not defined
      M575 P1 S1 B57600                              ; enable support for PanelDue
      

      Unbenanntsssss.PNG

      Vetiundefined 1 Reply Last reply Reply Quote 0
      • Vetiundefined
        Veti @RocketPat
        last edited by

        @RocketPat said in Strange BLTouch issue. Hightmap it off while printing:

        G31 P500 X-16 Y-42 Z2.38 ; set Z probe trigger value, offset and trigger height

        are you sure those coordinates are correct?

        typical ender 3 settings are X-44 Y-17 and the cr-10 has the same style i believe.

        post your homeall.g

        RocketPatundefined 1 Reply Last reply Reply Quote 0
        • RocketPatundefined
          RocketPat @Veti
          last edited by

          @Veti

          yea i gues they are right, the BLtouch is infront and left of the nossle.WhatsApp Image 2020-10-24 at 15.47.32.jpeg

          homeall.g

          ; homeall.g
          ; called to home all axes
          ;
          ; generated by RepRapFirmware Configuration Tool v3.1.4 on Sat Oct 03 2020 22:18:40 GMT+0200 (Mitteleuropäische Sommerzeit)
          G91                     ; relative positioning
          G1 H2 Z5 F6000          ; lift Z relative to current position
          G1 H1 X-245 Y-285 F1800 ; move quickly to X and Y axis endstops and stop there (first pass)
          G1 H2 X5 Y5 F6000       ; go back a few mm
          G1 H1 X-245 Y-285 F360  ; move slowly to X and Y axis endstops once more (second pass)
          G90                     ; absolute positioning
          G1 X118 Y185 F6000      ; go to first bed probe point and home Z
          G30                     ; home Z by probing the bed
          
          ; Uncomment the following lines to lift Z after probing
          ;G91                    ; relative positioning
          ;G1 Z5 F100             ; lift Z relative to current position
          ;G90                    ; absolute positioning
          

          my first probe point i set to be the middle of the bed

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          • Vetiundefined
            Veti
            last edited by

            i cant see anything strange in the config

            G30 is called directly before G29.

            but i have to say that are some strange modifications that you made to your cr10.
            switching to linear rods from v-slot and going with a smaller bed.

            can you confirm the firmware version is 3.1.1? using m115

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            • RocketPatundefined
              RocketPat
              last edited by

              I did a new mesh bed test and the result is much better than what i had first... with less probe points and also its right what i get, the left side is higher, what causes the nossel to get higer and that is messing up my print because the printer moves to much up. Than the print dosent stick anymore. And on the right side its too low and crushes into the bed.
              Test2.PNG

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              • RocketPatundefined
                RocketPat
                last edited by

                Yep i updated to the latest Version
                M115
                FIRMWARE_NAME: RepRapFirmware for Duet 2 WiFi/Ethernet FIRMWARE_VERSION: 3.1.1 ELECTRONICS: Duet WiFi 1.02 or later FIRMWARE_DATE: 2020-05-19b2

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                • Vetiundefined
                  Veti
                  last edited by

                  that would be the result of one side of the x gantry sagging.
                  when you did your linear rod conversion, did you convert the cr-10 to dual z?

                  if yes, then you need to set up this
                  https://duet3d.dozuki.com/Wiki/Bed_levelling_using_multiple_independent_Z_motors

                  RocketPatundefined 1 Reply Last reply Reply Quote 0
                  • RocketPatundefined
                    RocketPat @Veti
                    last edited by

                    @Veti yea i am using dual z leadscrew but the duet 2 wifi featured a second slot for both axes parallel so i am only using 1 z output for both

                    Vetiundefined 1 Reply Last reply Reply Quote 0
                    • Vetiundefined
                      Veti @RocketPat
                      last edited by

                      @RocketPat
                      your z leadscrews are out of sync. you can correct it manually, but the dual z setup is faster and more accurate.

                      also unless you converted your cr 10 to 24v you are running your z motors at 6V, which might not be enough.

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                      • RocketPatundefined
                        RocketPat
                        last edited by

                        ah okey i am using a 12V PSU but if they run in parallel the voltage should be the same... only the current is dropping

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                        • Vetiundefined
                          Veti
                          last edited by

                          the 2 z connectors on the duet actually run in series rather than in parallel.

                          from the linked site

                          Note that the Z driver (drive 2 on Duet2) has a dual socket wired in series for powering two z motors at once.

                          RocketPatundefined 1 Reply Last reply Reply Quote 0
                          • RocketPatundefined
                            RocketPat @Veti
                            last edited by

                            @Veti ohhh okey so that are some bad news i see haha okey. I will give the independent z setup a try.

                            1 Reply Last reply Reply Quote 0
                            • Vetiundefined
                              Veti
                              last edited by

                              @RocketPat said in Strange BLTouch issue. Hightmap it off while printing:

                              M584 X0 Y1 Z2 E3 ; set drive mapping

                              for now change this to
                              M584 X0 Y1 Z2:4 E3 ; set drive mapping

                              connect the second z motor to e1 and place the jumpers on the second z connector.

                              that way you are using 2 motors for now.

                              RocketPatundefined 1 Reply Last reply Reply Quote 0
                              • RocketPatundefined
                                RocketPat @Veti
                                last edited by RocketPat

                                @Veti okey i only need to change that or do i have to do more suff i am reading that hole article for the frist time now and i am kinda scared to set up everythig new again. I will do a quick backup and give it a try.

                                Vetiundefined 1 Reply Last reply Reply Quote 0
                                • Vetiundefined
                                  Veti @RocketPat
                                  last edited by

                                  @RocketPat

                                  that changes allows you to use 2 motors for now.
                                  you still need to do the rest later.

                                  my guess for now is that you are losing steps because of the 6v dual z setup.

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                                  • RocketPatundefined
                                    RocketPat
                                    last edited by

                                    okey i am doing a quick first layer print and see what is happening, looking good so far. Nothing exploded.

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                                    • RocketPatundefined
                                      RocketPat
                                      last edited by

                                      So now i did quite a bit testing and i got a much better result.
                                      Test3.PNG

                                      Also the true leveling is working now. But i still have too low presure on the left side. I can get a print startet now and it would be working but maby my current is too low now.

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                                      • Vetiundefined
                                        Veti
                                        last edited by

                                        did you measure the real offset of the probe?

                                        1 Reply Last reply Reply Quote 0
                                        • RocketPatundefined
                                          RocketPat
                                          last edited by

                                          yep i startet at x100 y100 and moved to x117 y143 what means that the offset should be -17 and -43

                                          1 Reply Last reply Reply Quote 0
                                          • RocketPatundefined
                                            RocketPat
                                            last edited by

                                            okey now i got a new problem, after i restarted the board the hightmap is getting generated but is not used. The motors dosen't correct my print anymore.

                                            Vetiundefined 1 Reply Last reply Reply Quote 0
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