Z Offset is not applied to prints



  • So I have been working on modding out my cr-10 using a duet wifi to make upgrades like dual lead screws and other things. I had everything working but then added a bltouch pin. I have been working at this for about 2 days now and have gone through all of the forums and the tutorials. The printer homes fine and I am doing the calibration sequence. But no matter what my input value is on the G31 command, nothing changes. I have gone through the forums already and checked my override and my M501 in the config. I'm just really stuck at this point and any help would be appreciated.
    Here is my config:

    ; Configuration file for Duet WiFi (firmware version 3)
    ; executed by the firmware on start-up
    ;
    ; generated by RepRapFirmware Configuration Tool v3.1.4 on Tue Jul 21 2020 11:48:43 GMT-0400 (Eastern Daylight Time)

    ; General preferences
    G90 ; send absolute coordinates...
    M83 ; ...but relative extruder moves
    M550 P"Ian's Cr-10" ; set printer name
    M307 H7 A-1 C-1 D-1

    ; Network
    M552 S1 ; enable network
    M586 P0 S1 ; enable HTTP
    M586 P1 S0 ; disable FTP
    M586 P2 S0 ; disable Telnet

    ; Drives
    M569 P0 S1 ; physical drive 0 goes forwards
    M569 P1 S1 ; physical drive 1 goes forwards
    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 Z400 E420.00 ; 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 Z180.00 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 E800 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 X300 Y300 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 S2 ; configure Z-probe endstop for low end on Z

    ; Z-Probe
    M950 S7 C"exp.heater3" ; create servo pin 3 for BLTouch
    M558 P9 C"^zprobe.in" H5 F120 T6000 ; set Z probe type to bltouch and the dive height + speeds
    G31 P25 X0 Y-50 Z-5 ; set Z probe trigger value, offset and trigger height
    M557 X25:275 Y25:275 S20 ; define mesh grid

    ; Heaters
    M143 S265 ; Set maximum heater temperature to 265C
    M305 P0 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 0
    M305 P1 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 1
    ; BLTouch - Heaters
    M307 H7 A-1 C-1 D-1 ; Disable the 7th Heater to free up PWM channel 5 on the Duex board.
    ; Fans
    M950 F0 C"fan0" Q500 ; create fan 0 on pin fan0 and set its frequency
    M106 P0 S0 H T30 ; set fan 0 value. Thermostatic control is turned on
    M950 F1 C"fan1" Q500 ; create fan 1 on pin fan1 and set its frequency
    M106 P1 S1 H1 T30 ; set fan 1 value. Thermostatic control is turned on

    ; Tools
    M563 P1 S"Hotend" D0 H1 F0 ; define tool 1
    G10 P1 X0 Y0 Z0 ; set tool 1 axis offsets
    G10 P1 R0 S0 ; set initial tool 1 active and standby temperatures to 0C

    ; Custom settings
    M552

    M558 P5 H5 F100 T2000

    G31 X0 Y0 Z0 P25

    ; Miscellaneous
    M501 ; load saved parameters from non-volatile memory
    T1 ; select first tool


  • Moderator

    Hi, your config file has a mix of version 2 and version 3 syntax for the probe and I think you're over writing yourself causing some issues.

    Please tell us what firmware version you're actually using. Send M115 to find out. Once we have that we can clean up the config. In general, assuming you;re on RRF3, you should remove any references to M307 H7 A-1 C-1 D-1 and any M558 commands that don't have the zprobe.in pin part, as they are formatted for RRF2. You've also got a second G31 near the bottom with no offsets that would be over writing your previous command.

    Just going through the web configurator and choosing the Ender 3 as a starting point, firmware 3, and bltouch gives this as an example to compare against.

    ; Configuration file for Duet WiFi (firmware version 3)
    ; executed by the firmware on start-up
    ;
    ; generated by RepRapFirmware Configuration Tool v3.1.4 on Thu Jul 23 2020 15:42:44 GMT-0600 (Central Standard Time)
    
    ; General preferences
    G90                                                ; send absolute coordinates...
    M83                                                ; ...but relative extruder moves
    M550 P"Ender 3 Pro"                                ; set printer name
    M918 P1 E4 F2000000                                ; configure direct-connect display
    
    ; Network
    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 S1                                         ; physical drive 2 goes forwards
    M569 P3 S0                                         ; physical drive 3 goes backwards
    M584 X0 Y1 Z2 E3                                   ; set drive mapping
    M350 X16 Y16 Z16 E16 I1                            ; configure microstepping with interpolation
    M92 X80.00 Y80.00 Z400.00 E93.00                   ; set steps per mm
    M566 X1200.00 Y1200.00 Z24.00 E300.00              ; set maximum instantaneous speed changes (mm/min)
    M203 X9000.00 Y9000.00 Z180.00 E6000.00            ; set maximum speeds (mm/min)
    M201 X500.00 Y500.00 Z100.00 E5000.00              ; set accelerations (mm/s^2)
    M906 X800 Y800 Z800 E1000 I50                      ; 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 X235 Y235 Z260 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 X0 Y0 Z2.5                                ; set Z probe trigger value, offset and trigger height
    M557 X15:215 Y15:195 S20                           ; 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 S150                                       ; set temperature limit for heater 0 to 150C
    M308 S1 P"e0temp" Y"thermistor" T100000 B4092      ; 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" Q500                               ; 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
    M950 F2 C"fan2" Q500                               ; create fan 2 on pin fan2 and set its frequency
    M106 P2 S1 H1:0 T45                                ; set fan 2 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
    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
    T0                                                 ; select first tool
    


  • Hi,

    We need to know how and when you create the height map AND how and when you apply the height map.

    These steps involve G30 for setting the Z=0 datum and G29 for creating/loading the height map.

    Both involve using the Z probe.

    Frederick



  • @Phaedrux Thank you so much for helping, I modified the config so now it works. I guess following multiple tutorials to try to make it work created some problems. I am currently doing the mesh leveling for the bed. Thanks again for your help.


  • Moderator

    No problem. It can get a bit daunting at times and we tend to overthink it which can lead us astray. Usually, when in doubt, getting a config from the configurator will show us the correct syntax to start with.


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