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    Heigh error after calibrating

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    • Stephen6309undefined
      Stephen6309 @fcwilt
      last edited by

      @fcwilt In my slicer's start gcode, I call the macros, then home, then G32 which does a G29 S1 or S0 depending on if it finds heightmap.csv. Never had a problem with the heightmap working correctly.

      1 Reply Last reply Reply Quote 0
      • TristanKoelnundefined
        TristanKoeln @fcwilt
        last edited by

        @fcwilt

        @fcwilt said in Heigh error after calibrating:

        Hi,

        I've re-posted your files using the </> tag - it saves everyone the trouble of downloading your files.

        Would you look at them and verify they are your current files?

        Thanks.

        Frederick

        ; Configuration file for Duet WiFi (firmware version 3)
        ; executed by the firmware on start-up
        ;
        ; generated by RepRapFirmware Configuration Tool v3.2.1 on Mon Jan 18 2021 17:44:49 GMT+0100 (Mitteleuropäische Normalzeit)
        
        ; General preferences
        G90                                                 ; send absolute coordinates...
        M83                                                 ; ...but relative extruder moves
        M550 P"BIGCREATOR"                                  ; set printer name
        
        
        ; Network
        M552 S1                                             ;Tun Network ON
                                    
        ; Drives
        M569 P0 S0                                          ; physical drive 0 goes forwards
        M569 P1 S1                                          ; physical drive 1 goes forwards
        M569 P2 S1                                          ; physical drive 2 goes forwards
        M569 P3 S0                                          ; physical drive 3 goes forwards
        M569 P4 S1                                          ; physical drive 4 goes forwards
        M584 X0 Y1 Z2:4 E3                                  ; set drive mapping
        M350 X16 Y16 Z16:16 E16 I1                          ; configure microstepping with interpolation
        M92 X80.00 Y100.00 Z405:405.00 E750.00              ; set steps per mm
        M566 X1800.00 Y1800.00 Z120.00:120.00 E500.00       ; set maximum instantaneous speed changes (mm/min)
        M203 X36000.00 Y36000.00 Z200.00:200.00 E500.00     ; set maximum speeds (mm/min)
        M201 X1000.00 Y1000.00 Z400.00:400.00 E500.00       ; set accelerations (mm/s^2)
        M906 X1200 Y1200 Z1000:1000 E1000 I30               ; set motor currents (mA) and motor idle factor in per cent
        M84 S30                                             ; Set idle timeout
        
        ; Axis Limits
        M208 X0 Y0 Z-10 S1                                  ; set axis minima
        M208 X440 Y440 Z400 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 S1 P"!zstop+!e1stop"                        ; configure active-high endstop for low end on Z via pin zstop
        
        ; Z-Probe
        M558 P9 C"^zprobe.in" H5 F120 T5000                 ; BLTouch connected to Z probe IN pin
        M950 S0 C"exp.heater3"                              ; create servo/gpio 0 on heater 3 pin on expansion connector
        M98 P"/macros/NORMAL_Offset"                        ; set z probe offsets
        
        M280 P0 S10                                         ; send control signal to BLTouch through servo/gpio 0                                        
                                                  
        ;G31 P500 X0 Y0 Z25                                 ; set Z probe trigger value, offset and trigger height
        M557 X10:390 Y10:390 S38:38                         ; define mesh grid
        
        ; Heaters
        M308 S0 P"bedtemp" Y"thermistor" T100000 B4092      ; 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
        M307 H0 B0 S1.00                                    ; disable bang-bang mode for the bed heater and set PWM limit
        M140 H0                                             ; map heated bed to heater 0
        M143 H0 S120                                        ; set temperature limit for heater 0 to 120C
        M308 S1 P"e1temp" Y"thermistor" T100000 B4092       ; configure sensor 1 as PT1000 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
        M143 H1 S280                                        ; set temperature limit for heater 1 to 280C
        
        ; Fans
        M950 F0 C"fan0" Q0                                  ; create fan 0 on pin fan0 and set its frequency
        ;M106 P0 S1 H-1                                      ; set fan 0 value. Thermostatic control is turned off
        M950 F1 C"fan1" Q0                                  ; create fan 1 on pin fan1 and set its frequency
        ;M106 P1 S1 H-1                                      ; set fan 1 value. Thermostatic control is turned off
        M950 F2 C"fan2" Q0                                  ; create fan 2 on pin fan2 and set its frequency
        ;M106 P2 S1 H-1                                      ; set fan 2 value. Thermostatic control is turned off
        
        ; Tools
        M563 P0 S"WaterColledHead" D0 H1 F-1                ; 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
        M575 P1 S1 B57600                                   ; enable support for PanelDue
        M501                                                ; 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
        
        G28                                                 ; home
        
        ; bed.g
        ; called to perform automatic bed compensation via G32
        ;
        ; generated by RepRapFirmware Configuration Tool v3.2.1 on Mon Jan 18 2021 17:44:49 GMT+0100 (Mitteleuropäische Normalzeit)
        M561     ; clear any bed transform
        G28      ;home
        G29 S1   ; probe the bed and enable compensation
        M280 P0 S90 ; retractProbe
        
        ; homez.g
        ; called to home the Z axis
        ;
        ; generated by RepRapFirmware Configuration Tool v3.2.1 on Mon Jan 18 2021 17:44:49 GMT+0100 (Mitteleuropäische Normalzeit)
        G91               ; relative positioning
        G1 H2 Z10 F6000   ; lift Z relative to current position
        G1 H1 Z-500 F3000 ;Go down till endstop
        G1 H2 Z10 F6000
        G1 X200 Y200 F4000 ;go to midle
        G30 ; move Z down until the endstop is triggered
        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 Z10 F100      ; lift Z relative to current position
        G90              ; absolute positioning
        
        ; homeall.g
        ; called to home all axes
        ;
        ; generated by RepRapFirmware Configuration Tool v3.2.1 on Mon Jan 18 2021 17:44:49 GMT+0100 (Mitteleuropäische Normalzeit)
        
        ;DUAL Z 
        M584 Z2:4   
        
        M280 P0 S90
        G91                     ; relative positioning
        G1 H2 Z10 F6000         ; lift Z relative to current position
        G1 H1 X-405 Y-405 F5000 ; 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-405 Y-405 F360  ; move slowly to X and Y axis endstops once more (second pass)
        M98 Phomez.g            ; move Z down stopping at the endstop
        G90                     ; absolute positioning
        G92 Z10                 ; 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 Z10 F100            ; lift Z relative to current position
        ;G90                    ; absolute positioning
        
        
        

        yaa its my current

        fcwiltundefined 1 Reply Last reply Reply Quote 0
        • fcwiltundefined
          fcwilt @TristanKoeln
          last edited by

          @TristanKoeln

          Thanks.

          So if they are current there are two things wrong that may be causing you problems.

          In homeZ.g there is that G92 Z0 after the G30 that is setting the Z position incorrectly. Since the G30 leaves Z in a known position you can simply remove the G92 Z0 or if you wish to move Z to some other known position you can use something like G90 G1 Z10.

          In homeALL.g there is G92 Z10 after the call to homeZ.g which again will set the Z position incorrectly.

          And the M584 command is not needed since it occurs in your config.g file.

          What is the intent of the M280 P0 S90 command? If you issue deploy/retract commands using M280 instead of M401/M402 then the firmware may lose track of the state of the probe.

          Frederick

          Printers: a E3D MS/TC setup and a RatRig Hybrid. Using Duet 3 hardware running 3.4.6

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          • TristanKoelnundefined
            TristanKoeln
            last edited by

            so i edit the files

            ; homez.g
            ; called to home the Z axis
            ;
            ; generated by RepRapFirmware Configuration Tool v3.2.1 on Mon Jan 18 2021 17:44:49 GMT+0100 (Mitteleuropäische Normalzeit)
            G91               ; relative positioning
            G1 H2 Z10 F6000   ; lift Z relative to current position
            G1 H1 Z-500 F3000 ;Go down till endstop
            G1 H2 Z10 F6000
            G1 X200 Y200 F4000 ;go to midle
            G30 ; move Z down until the endstop is triggered
            ;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 Z10 F100      ; lift Z relative to current position
            G90              ; absolute positioning
            
            
            ; homeall.g
            ; called to home all axes
            ;
            ; generated by RepRapFirmware Configuration Tool v3.2.1 on Mon Jan 18 2021 17:44:49 GMT+0100 (Mitteleuropäische Normalzeit)
            
            ;DUAL Z 
            ;M584 Z2:4   
            
            M280 P0 S90
            G91                     ; relative positioning
            G1 H2 Z10 F6000         ; lift Z relative to current position
            G1 H1 X-405 Y-405 F5000 ; 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-405 Y-405 F360  ; move slowly to X and Y axis endstops once more (second pass)
            M98 Phomez.g            ; move Z down stopping at the endstop
            G90                     ; absolute positioning
            G92 Z10                ; 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 Z10 F100            ; lift Z relative to current position
            ;G90                    ; absolute positioning
            
            

            i got the nozzel once close to the bed.. to close after i made the calibration process again the problem from the start came back

            fcwiltundefined 1 Reply Last reply Reply Quote 0
            • TristanKoelnundefined
              TristanKoeln
              last edited by

              @fcwilt and the M280 is just to move the pin in a save position just incase it isnt

              1 Reply Last reply Reply Quote 0
              • fcwiltundefined
                fcwilt @TristanKoeln
                last edited by

                @TristanKoeln said in Heigh error after calibrating:

                i got the nozzel once close to the bed.. to close after i made the calibration process again the problem from the start came back

                Did you leave the G92 Z10 in homeALL.g?

                And did you understand what I meant about the firmware losing track of the state of the probe if you didn't use M401/M402?

                Frederick

                Printers: a E3D MS/TC setup and a RatRig Hybrid. Using Duet 3 hardware running 3.4.6

                1 Reply Last reply Reply Quote 0
                • TristanKoelnundefined
                  TristanKoeln
                  last edited by

                  @fcwilt the G92 is only in the home all file ;
                  not realy

                  fcwiltundefined 1 Reply Last reply Reply Quote 0
                  • fcwiltundefined
                    fcwilt @TristanKoeln
                    last edited by

                    @TristanKoeln said in Heigh error after calibrating:

                    @fcwilt the G92 is only in the home all file ;

                    Just before that G92 Z10 you have a call to homeZ.g which executes a G30 and sets the Z=0 Datum and leaves the Z position at dive height + Z trigger height.

                    You can't just tell the firmware with a G92 that the Z position is something else and expect things to work.

                    You can change the actual Z position with a G1 Znnn command but not with a G92 command.

                    not realy

                    When you use M401/M402 the firmware keeps track of the state of the probe (retracted/deployed).

                    When you use the M280 command to retract/deploy the actual state of the probe and what state the firmware thinks the probe is in may conflict and possibly cause problems.


                    Frederick

                    Printers: a E3D MS/TC setup and a RatRig Hybrid. Using Duet 3 hardware running 3.4.6

                    1 Reply Last reply Reply Quote 1
                    • TristanKoelnundefined
                      TristanKoeln
                      last edited by

                      if im setting all the G92 Z(dive + trigger geigh) could that solve the problem

                      fcwiltundefined 1 Reply Last reply Reply Quote 0
                      • fcwiltundefined
                        fcwilt @TristanKoeln
                        last edited by

                        @TristanKoeln said in Heigh error after calibrating:

                        if im setting all the G92 Z(dive + trigger geigh) could that solve the problem

                        Hi,

                        You don't need to.

                        The G30 leaves the Z axis position at dive height + Z trigger height.

                        Setting it again with G92 to dive height + Z trigger height is redundant and serves no purpose.

                        G92 is useful in certain specific instances and unless you are dealing with one of those instances you should treat the presence of G92 in your code as very suspicious and likely should be removed.

                        When in doubt ask.

                        Frederick

                        Printers: a E3D MS/TC setup and a RatRig Hybrid. Using Duet 3 hardware running 3.4.6

                        1 Reply Last reply Reply Quote 0
                        • TristanKoelnundefined
                          TristanKoeln
                          last edited by

                          @fcwilt I removed all G92, and relevled everything, still not working

                          ; homeall.g
                          ; called to home all axes
                          ;
                          ; generated by RepRapFirmware Configuration Tool v3.2.1 on Mon Jan 18 2021 17:44:49 GMT+0100 (Mitteleuropäische Normalzeit)
                          
                          ;DUAL Z 
                          ;M584 Z2:4   
                          
                          M280 P0 S90
                          G91                     ; relative positioning
                          G1 H2 Z10 F6000         ; lift Z relative to current position
                          G1 H1 X-405 Y-405 F5000 ; 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-405 Y-405 F360  ; move slowly to X and Y axis endstops once more (second pass)
                          M98 Phomez.g            ; move Z down stopping at the endstop
                          G90                     ; absolute positioning
                          ; 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 Z10 F100            ; lift Z relative to current position
                          ;G90                    ; absolute positioning
                          
                          
                          ; homez.g
                          ; called to home the Z axis
                          ;
                          ; generated by RepRapFirmware Configuration Tool v3.2.1 on Mon Jan 18 2021 17:44:49 GMT+0100 (Mitteleuropäische Normalzeit)
                          G91                 ;relative positioning
                          G1 H2 Z10 F6000     ;lift Z relative to current position
                          G1 H1 Z-500 F3000   ;Go down till endstop
                          G1 H2 Z10 F6000
                          G1 X200 Y200 F4000  ;go to midle
                          G30                 ;move Z down until the endstop is triggered
                                    ;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 Z10 F100        ;lift Z relative to current position
                          G90                ;absolute positioning
                          
                          fcwiltundefined 1 Reply Last reply Reply Quote 0
                          • fcwiltundefined
                            fcwilt @TristanKoeln
                            last edited by

                            @TristanKoeln

                            Hi,

                            After you do a Home ALL or a Home Z what does the DWC report for the Z position?

                            At the point if you use the Z jog controls to lower the nozzle to just touch the bed what does the DWC report for the Z position?

                            Thanks.

                            Frederick

                            Printers: a E3D MS/TC setup and a RatRig Hybrid. Using Duet 3 hardware running 3.4.6

                            1 Reply Last reply Reply Quote 0
                            • TristanKoelnundefined
                              TristanKoeln
                              last edited by

                              @fcwilt after homeing 8,98
                              nozzel on bead 0,13

                              fcwiltundefined 1 Reply Last reply Reply Quote 0
                              • fcwiltundefined
                                fcwilt @TristanKoeln
                                last edited by

                                @TristanKoeln said in Heigh error after calibrating:

                                @fcwilt after homeing 8,98
                                nozzel on bead 0,13

                                That suggests that the Z trigger height setting needs to be increased by 0,13.

                                Frederick

                                Printers: a E3D MS/TC setup and a RatRig Hybrid. Using Duet 3 hardware running 3.4.6

                                1 Reply Last reply Reply Quote 0
                                • TristanKoelnundefined
                                  TristanKoeln
                                  last edited by

                                  @fcwilt oke but that does not close the gabe of about1-2mm

                                  fcwiltundefined 1 Reply Last reply Reply Quote 0
                                  • fcwiltundefined
                                    fcwilt @TristanKoeln
                                    last edited by

                                    @TristanKoeln said in Heigh error after calibrating:

                                    @fcwilt oke but that does not close the gabe of about1-2mm

                                    When does this gap of 1-2mm occur?

                                    Frederick

                                    Printers: a E3D MS/TC setup and a RatRig Hybrid. Using Duet 3 hardware running 3.4.6

                                    1 Reply Last reply Reply Quote 0
                                    • TristanKoelnundefined
                                      TristanKoeln
                                      last edited by

                                      @fcwilt when im trying to print

                                      fcwiltundefined 1 Reply Last reply Reply Quote 0
                                      • fcwiltundefined
                                        fcwilt @TristanKoeln
                                        last edited by

                                        @TristanKoeln said in Heigh error after calibrating:

                                        @fcwilt when im trying to print

                                        That suggests that something is occurring at the start of a print to cause the gap.

                                        What commands are executed at the start of a print?

                                        Are these commands entered into your slicer or are they in a gcode file on your printer?

                                        Thanks.

                                        Frederick

                                        Printers: a E3D MS/TC setup and a RatRig Hybrid. Using Duet 3 hardware running 3.4.6

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                                        • TristanKoelnundefined
                                          TristanKoeln
                                          last edited by

                                          @fcwilt 0f8560c4-c81c-4dc5-9f49-f79f6dc92e94-image.png

                                          im using cura with that start code

                                          fcwiltundefined 1 Reply Last reply Reply Quote 0
                                          • fcwiltundefined
                                            fcwilt @TristanKoeln
                                            last edited by

                                            @TristanKoeln said in Heigh error after calibrating:

                                            @fcwilt 0f8560c4-c81c-4dc5-9f49-f79f6dc92e94-image.png

                                            im using cura with that start code

                                            Thanks.

                                            As a test try starting a print (it doesn't have to finish) but comment out those two commands - the M98 and the G29.

                                            Frederick

                                            Printers: a E3D MS/TC setup and a RatRig Hybrid. Using Duet 3 hardware running 3.4.6

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