BL Touch flashes after homing z


  • Moderator

    Using your pins in the configurator I get this:

    ; Z-Probe
    M950 S0 C"io4.out"                                    ; create servo pin 0 for BLTouch
    M558 P9 C"^io4.in" H5 F60 T6000                     ; set Z probe type to bltouch and the dive height + speeds
    G31 P25 X0 Y0 Z2.5                                   ; set Z probe trigger value, offset and trigger height
    

    So you may need the pullup ^ enabled on io4.in

    The other thing I notice is that your homez places the probe outside the bed if your G31 X Y offsets are correct.

    G1 X15 Y15 F6000 ; go to first probe point
    G31 P500 X-20 Y-20 Z4 ; set Z probe trigger value, offset and trigger height

    Also Z4 for a trigger height seems very high for the BLtouch.

    What is in your homeall?



  • It was the thread https://forum.duet3d.com/topic/15823/duet-3-inverted-pull-up-inverted-pull-up where it was told that io4.in and io4.out should be pulled up with ^ with the Duet3.



  • @JoergS5 said in BL Touch flashes after homing z:

    Probably nothing to do with the problem, but you have 3 mappings for E, but 6 values for E at the following settings.

    What do you mean with it and how can I change this?



  • This post is deleted!


  • This post is deleted!


  • @JoergS5
    Yes.. thank you. But the problem is still, that the no touch flashes after doing a z probe. Z probe, but then I have to deconnect the cable and then it's working. M401 / M402.
    Also after successfully probe the first point (G32) it's stopping,and it says ''z probe was not triggered during probing move''.



  • @barbarossa-cologne it is some time ago, so I don't remember well.

    First you should update to firmware 3.1.1, if you have an older version.

    Then please make an image of the BLtouch 5-pin connector and the wiring on the Duet to check wiring.

    In the meantime I know that
    M558 P9 C"io4.in" H5 F60 T6000
    doesn't need ^ because it already has pullup acticated automatically.


  • Moderator

    Post your homeall.g and bed.g please.



  • 
    Duet 3
    g32
    Status
    Idle
    Mode: FFF
    Tool Position
    X
    35.0
    Y
    35.0
    Z
    -12.50
    Extruder Drives
    Drive 0
    0.0
    Drive 1
    0.0
    Drive 2
    0.0
    Speeds
    Requested Speed
    0 mm/s
    Top Speed
    0 mm/s
    Sensors
    Vin
    24.0 V
    V12
    12.1 V
    MCU Temperature
    44.8 C
    Z-Probe
    0
     Tools
     Extra
     Control All
    Tool	Heater	Current	Active	Standby
    Tool 0
    T0 - Load Filament	Heater 1
    off	25.9 C	
    0
    0
    Bed	Heater 0
    fault	25.9 C	
    70
    0
    Temperature Chart
    Macros Directory
    >
    sys
    0:/macros/sys/homeall.g
    ; homeall.g
    ; called to home all axes
    ;
    ; generated by RepRapFirmware Configuration Tool v3.1.3 on Tue Jun 23 2020 22:36:44 GMT+0200 (Mitteleuropäische Sommerzeit)
    G91                   ; relative positioning
    G1 H2 Z15 F2400       ; lift Z relative to current position
    G1 H1 X805 Y805 F1200 ; move quickly to X and Y axis endstops and stop there (first pass)
    G1 H2 X-5 Y-5 F2400   ; go back a few mm
    G1 H1 X805 Y805 F360  ; move slowly to X and Y axis endstops once more (second pass)
    G1 H1 Z-805 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 Z15 F40           ; lift Z relative to current position
    ;G90                  ; absolute positioning
    
    
    


  • @Phaedrux

    
    Duet 3
    g32
    Status
    Idle
    Mode: FFF
    Tool Position
    X
    35.0
    Y
    35.0
    Z
    -12.50
    Extruder Drives
    Drive 0
    0.0
    Drive 1
    0.0
    Drive 2
    0.0
    Speeds
    Requested Speed
    0 mm/s
    Top Speed
    0 mm/s
    Sensors
    Vin
    24.0 V
    V12
    12.1 V
    MCU Temperature
    44.8 C
    Z-Probe
    0
     Tools
     Extra
     Control All
    Tool	Heater	Current	Active	Standby
    Tool 0
    T0 - Load Filament	Heater 1
    off	25.9 C	
    0
    0
    Bed	Heater 0
    fault	25.9 C	
    70
    0
    Temperature Chart
    Macros Directory
    >
    sys
    0:/macros/sys/bed.g
    ; bed.g
    ; Called using G32
    ; Called to perform True Autolevel using 4-point probe
    ;
    ; generated by RepRapFirmware Configuration Tool v3.1.3 on Tue Jun 23 2020 22:36:44 GMT+0200 (Mitteleuropäische Sommerzeit)
    
    M561 ; clear any bed transform
    G29 S3; Clear bed height map
    ; Probe 4-point
    
    G30 P0 X150 Y135 Z-9999 ; Front Right
    G30 P1 X550 Y135 Z-9999 ; Front Left
    G30 P2 X550 Y565 Z-9999 ; Back Left
    G30 P3 X150 Y565 Z-9999 S4 ; Back Right
    
    
    
    
    
    

  • Moderator

    Let's try and keep it to a single thread please.



  • sorry
    That was not my plan.....



  • @barbarossa-cologne in the other thread you say firmware is 3.01 beta 9, you should update to 3.1.1 first before doing anything else.


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