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Changes to config.g ignored when printing.

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  • undefined
    mjimeyg @deckingman
    last edited by 22 Dec 2021, 19:16

    @deckingman I use the following guide for z-offset calibration: BLTouch on Duet WiFi – Configuration and usage

    My files:

    config.g:

    ; Configuration file for Duet 3 (firmware version 3)
    ; executed by the firmware on start-up
    ;
    ; generated by RepRapFirmware Configuration Tool v2.1.5 on Thu Jan 09 2020 15:44:47 GMT+0000 (Greenwich Mean Time)
    ; General preferences
    G90 ; send absolute coordinates...
    M83 ; ...but relative extruder moves
    M550 P"RatRig" ; set printer name
    M667 S1 ; select CoreXY mode
    ; Network
    M552 P0.0.0.0 S1 ; enable network and acquire dynamic address via DHCP
    M586 P0 S1 ; enable HTTP
    M586 P1 S1 ; disable FTP
    M586 P2 S1 ; disable Telnet
    ; Drives
    M569 P0.0 S1 ; physical drive 0.0 goes forwards
    M569 P0.1 S1 ; physical drive 0.1 goes forwards
    M569 P0.2 S0 ; physical drive 0.2 goes forwards ; Left
    M569 P0.3 S0 ; physical drive 0.3 goes forwards ; Rear
    M569 P0.4 S0 ; physical drive 0.4 goes forwards ; Right
    M569 P0.5 S1 ; physical drive 0.5 goes backwards
    M584 X0.0 Y0.1 Z0.2:0.3:0.4 E0.5 ; set drive mapping (Left:0.2 - Rear:0.3 - Right:0.4)
    M671 X-30:230:25 Y120:556:120 S15 ; Kinematic bed ball locations - front left, front right and rear center
    M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation
    M92 X80.00 Y80.00 Z400.00 E409.00 ; set steps per mm
    M566 X900.00 Y900.00 Z12.00 E120.00 ; set maximum instantaneous speed changes (mm/min)
    M203 X6000.00 Y6000.00 Z1000.00 E1200.00 ; set maximum speeds (mm/min)
    M201 X500.00 Y500.00 Z20.00 E250.00 ; set accelerations (mm/s^2)
    M906 X800 Y800 Z800 E1000 I30 ; set motor currents (mA) and motor idle factor in per cent
    M84 S30 ; Set idle timeout
    ; Axis Limits
    M208 X0 Y0 Z0 S1 ; set axis minima
    M208 X500 Y500 Z500 S0 ; set axis maxima
    ; Endstops
    M574 X1 S3 ; configure sensorless endstop for low end on X
    M574 Y1 S3 ; configure sensorless endstop for low end on Y
    M574 Z1 S3 ; configure sensorless endstop for low end on Z
    ; Z-Probe
    M950 S0 C"io7.out" ; create servo pin 0 for BLTouch
    M558 P9 C"io7.in" H5 F120 T6000 ; set Z probe type to bltouch and the dive height + speeds
    ;M558 H30 ;*** Remove this line after delta calibration has been done and new delta parameters have been saved
    G31 P500 X-29 Y-12 Z4.53; set Z probe trigger value, offset and trigger height
    M557 X15:470 Y15:470 S40 ; define mesh grid
    ; Heaters
    M308 S0 P"temp0" Y"thermistor" A"Bed" T100000 B3950 ; configure sensor 0 as thermistor on pin temp0
    M950 H0 C"out0" T0 ; create bed heater output on out0 and map it to sensor 0
    M143 H0 S120 ; set temperature limit for heater 0 to 120C
    M307 H0 A436.5 C459.5 D4.1 S1.00 V0 B0 ; disable bang-bang mode for the bed heater and set PWM limit
    M140 H0 ; map heated bed to heater 0
    M308 S1 P"temp2" Y"thermistor" A"Hotend" T100000 B4725 C7.06e-8 ; configure sensor 1 as thermistor on pin temp2
    M950 H1 C"out1" T1 ; create nozzle heater output on out1 and map it to sensor 1
    M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit
    M143 H1 S280 ; set temperature limit for heater 1 to 280C
    ; Fans
    M950 F0 C"out7" Q500 ; create fan 0 on pin out7 and set its frequency
    M106 P0 S0 H-1 ; set fan 0 value. Thermostatic control is turned off
    M950 F1 C"out8" Q500 ; create fan 1 on pin out8 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
    ; Miscellaneous
    ; load saved parameters from non-volatile memory
    M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power loss
    T0 ; select first tool
    M501

    config-override.g:

    ; config-override.g file generated in response to M500 at 2021-11-28 10:26
    ; Heater model parameters
    M307 H0 R0.488 C616.200:616.200 D2.60 S1.00 V23.9 B0
    M307 H1 R1.258 C207.600:207.600 D11.70 S1.00 V23.2 B0
    ; Workplace coordinates
    ;G10 L2 P1 X0.00 Y0.00 Z0.00
    ;G10 L2 P2 X0.00 Y0.00 Z0.00
    ;G10 L2 P3 X0.00 Y0.00 Z0.00
    ;G10 L2 P4 X0.00 Y0.00 Z0.00
    ;G10 L2 P5 X0.00 Y0.00 Z0.00
    ;G10 L2 P6 X0.00 Y0.00 Z0.00
    ;G10 L2 P7 X0.00 Y0.00 Z0.00
    ;G10 L2 P8 X0.00 Y0.00 Z0.00
    ;G10 L2 P9 X0.00 Y0.00 Z0.00

    bed.g:

    ; bed.g
    ; called to perform automatic bed compensation via G32
    ;
    ; generated by RepRapFirmware Configuration Tool v2.1.5 on Thu Jan 09 2020 15:44:47 GMT+0000 (Greenwich Mean Time)
    M561 ; clear any bed transform
    ;G28 ; home
    M558 F160
    G30 P0 X10 Y115 Z-99999 ; probe near left leadscrew
    G30 P1 X240 Y465 Z-99999 ; probe near rear leadscrew
    G30 P2 X450 Y115 Z-99999 S3 ; probe near right leadscrew and calibrate 3 motors
    G1 X0 Y0 F20000
    G29 S1

    homeall.g:

    ; homeall.g
    ; called to home all axes
    ;
    ; generated by RepRapFirmware Configuration Tool v2.1.5 on Thu Jan 09 2020 15:44:47 GMT+0000 (Greenwich Mean Time)
    M400
    M913 X70 Y70 ; drop motor current to 70%
    M400 G91; relative positioning
    G1 H2 Z20 F12000 ; lift Z relative to current position
    G1 H1 X-500.5 F10000 ; move quickly to X axis endstop and stop there (first pass)
    G1 H2 X5 F12000 ; go back a few mm
    G1 H1 X-500.5 F7000 ; move slowly to X axis endstop once more (second pass)
    ;G1 H2 Z-10 F6000 ; lower Z again
    G90 ; absolute positioning
    M400
    M913 X100 Y100 ; return current to 100%
    M400
    M400
    M913 X70 Y70 ; drop motor current to 70%
    M400 G91; relative positioning
    ;G1 H2 Z10 F12000 ; lift Z relative to current position
    G1 H1 Y-500.5 F10000 ; move quickly to Y axis endstop and stop there (first pass)
    G1 H2 Y5 F12000 ; go back a few mm
    G1 H1 Y-500.5 F7000 ; move slowly to Y axis endstop once more (second pass)
    ;G1 H2 Z-20 F6000 ; lower Z again
    G90 ; absolute positioning
    M400
    M913 X100 Y100 ; return current to 100%
    M400
    ;G1 H2 Z20 F12000 ; lift Z relative to current position
    G1 X250 Y250 F6000 ; Move probe to middle of bed
    M558 F500 ; Set the probing speed
    G30 ; Do a single probe to home our Z axis
    M558 F50 ; Set a slower probing speed
    G30
    G1 H2 Z20 F6000 ; lower Z again
    G32 ; Run 3-point bed calibration defined in bed.g
    ;G1 H1 Z-275 F360 ; move Z down stopping at the endstop
    ;G90 ; absolute positioning
    ;G92 Z0 ; set Z position to axis minimum (you may want to adjust this)
    ; Uncomment the following lines to lift Z after probing
    ;G91 ; relative positioning
    ;G1 Z5 F100 ; lift Z relative to current position
    ;G90 ; absolute positioning

    Those are my files.

    1 Reply Last reply Reply Quote 0
    • undefined
      Phaedrux Moderator
      last edited by 22 Dec 2021, 21:09

      Which offset exactly are you changing?

      Z-Bot CoreXY Build | Thingiverse Profile

      undefined 1 Reply Last reply 22 Dec 2021, 22:30 Reply Quote 0
      • undefined
        mjimeyg @Phaedrux
        last edited by 22 Dec 2021, 22:30

        @phaedrux I am changing the config.g file, line 50, the z argument of the G31 command:

        G31 P500 X-29 Y-12 Z4.53; set Z probe trigger value, offset and trigger height

        I would like to reiterate two things:

        1- This is board was working with this firmware and has stopped accepting the changes recently. I have not made any hardware or firmware changes.

        2- The calibration process works perfectly. I can perform it as listed in the provided webpage and get a good offset. The issue lies in that the value is ignored once the board is reset. So, if I perform all the calibration settings and set the G31 command manually, the bed will level. It is how I am still printing. But if I turn the printer off or save the changes to the config.g file, then once the board has reset itself, it ignores the value saved and listed... by aproximately 0.3.

        Finally, this is not an issue limited to the G31 command. Any changes are ignored to any command.

        1 Reply Last reply Reply Quote 0
        • undefined
          Phaedrux Moderator
          last edited by Phaedrux 23 Dec 2021, 00:05

          After you try changing it can you send G31 in the console and report back what it says?

          Can you also send M98 P"config.g" in the console and report back any errors.

          Z-Bot CoreXY Build | Thingiverse Profile

          undefined 1 Reply Last reply 23 Dec 2021, 20:20 Reply Quote 0
          • undefined
            mjimeyg @Phaedrux
            last edited by 23 Dec 2021, 20:20

            @phaedrux After changing the G31 z value from 4.31 to 4.5 in the config.g file and then going through the reset, the response from the G31 command is:

            Z probe 0: current reading 0, threshold 500, trigger height 4.500, offsets X-29.0 Y-12.0
            

            The response from the M98 P"config.g" command is:

            HTTP is enabled on port 80
            FTP is enabled on port 21
            TELNET is enabled on port 23
            Warning: Heater 0 appears to be over-powered. If left on at full power, its temperature is predicted to reach 461C
            Warning: Heater 0 appears to be over-powered. If left on at full power, its temperature is predicted to reach 325C
            undefined 1 Reply Last reply 24 Dec 2021, 15:33 Reply Quote 0
            • undefined
              Phaedrux Moderator
              last edited by 23 Dec 2021, 20:48

              Just to be sure, the config.g file you're editing is located in the system tab in DWC?

              Can you check the config.g file on the SD card in a computer to make sure it's not write protected or something?

              If you set the G31 offset manually in the console with G31 Z4.31 and then send G31 again, does it show the new value?

              Z-Bot CoreXY Build | Thingiverse Profile

              undefined 1 Reply Last reply 23 Dec 2021, 22:05 Reply Quote 0
              • undefined
                mjimeyg @Phaedrux
                last edited by 23 Dec 2021, 22:05

                @phaedrux I am using the DWC.

                The SD card is not write protected.

                The G31 command shows the new value after is set with the G31 command.

                1 Reply Last reply Reply Quote 0
                • undefined
                  Phaedrux Moderator
                  last edited by 23 Dec 2021, 22:09

                  If you make any other changes to the config.g are they reflected at startup?

                  Z-Bot CoreXY Build | Thingiverse Profile

                  undefined 1 Reply Last reply 24 Dec 2021, 13:27 Reply Quote 0
                  • undefined
                    mjimeyg @Phaedrux
                    last edited by 24 Dec 2021, 13:27

                    @phaedrux I changed the M557 to:

                    M557 X15:200 Y15:200 S40   
                    

                    I then ran a G29 and it did probe only a quarter of the bed as per the changed command in the config.g.

                    I also remembered that a few weeks ago Thermistor 1 out stopped working and I had to change the hotend thermistor to Thermistor 2. This is long after the issues with the config,g but it might be worth mentioning.

                    1 Reply Last reply Reply Quote 0
                    • undefined
                      deckingman @mjimeyg
                      last edited by 24 Dec 2021, 15:33

                      @mjimeyg said in Changes to config.g ignored when printing.:

                      @phaedrux After changing the G31 z value from 4.31 to 4.5 in the config.g file and then going through the reset, the response from the G31 command is:

                      Z probe 0: current reading 0, threshold 500, trigger height 4.500, offsets X-29.0 Y-12.0
                      

                      Just to recap. You changed the G31 offset from 4.31 to 4.5. Then you reset the board and sent G31 without any parameters and got back the resultant offset as being 4.5 yes? If that is the case, then the changes are not being ignored as per your thread title. I don't use a BLTouch so I'm not best qualified to comment but are you sure it's working properly and consistently? It just seems that the board and firmware are behaving as expected so the issue might be something else.

                      Ian
                      https://somei3deas.wordpress.com/
                      https://www.youtube.com/@deckingman

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