more bltouch issues....



  • Back for more help on the BLTouch

    BLTouch will not power on when printer is turned on, only with disconnecting the wire harness and reinserting the harness on the BLTouch will it power on, and perform self test.

    Also started getting the following error out of the blue, after many successful prints

    Error: Z probe already triggered before probing move started

    Look at the web interface and I see that Z-Probe is triggered and showing 1000.

    BLTouch light is solid red, and running the alarm release macro does not disengage the sensor.

    Firmwares:
    Firmware Name: RepRapFirmware for Duet 2 WiFi/Ethernet
    Firmware Electronics: Duet WiFi 1.02 or later
    Firmware Version: 2.04RC3 (2019-10-08b3)
    WiFi Server Version: 1.23
    Web Interface Version: 1.22.6

    Config:
    ; General preferences
    G90 ; Send absolute coordinates...
    M83 ; ...but relative extruder moves
    M575 P1 B38400 S1 ; Baudrate for Paneldue 38400
    M667 S1 ; Select CoreXY mode

    ; Network
    M550 P"My Printer" ; Set machine name
    M552 S1 ; Enable network
    M586 P0 S1 ; Enable HTTP
    M586 P1 S0 ; Disable FTP
    M586 P2 S0 ; Disable Telnet

    ; Drives
    M569 P0 S1 ; X-Axis Drive 0 goes backwards
    M569 P1 S1 ; Y-Axis Drive 1 goes backwards
    M569 P2 S0 ; Z-Axis Drive 2 goes forwards
    M569 P3 S0 ; Extruder Drive 3 goes backwards
    M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
    M92 X81 Y81 Z404 E415 ; Set steps per mm
    M566 X600.00 Y600.00 Z100.00 E120.00 ; Set maximum instantaneous speed changes (mm/min)
    M203 X6000.00 Y6000.00 Z180.00 E1200.00 ; Set maximum speeds (mm/min)
    M201 X3000.00 Y3000.00 Z100.00 E250.00 ; Set accelerations (mm/s^2)
    M906 X1430.00 Y1430.00 Z1430.00 E1440 I35 ; 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 X330 Y330 Z415 S0 ; Set axis maxima

    ; Endstops
    M574 X1 Y1 S0 ; Set active low and disabled endstops
    M574 Z1 S2 ; Define Z to use Probe. Home to Min
    M558 P9 Z1 H5 F100 T2000 ; Set Z probe type/mode 9. H=Dive Height. F=Speed the bed moves
    G31 X-23 Y-2 Z2.745 P25 ; Z probe trigger value, offset in relation to nozzle. And trigger height adjustment

    ;MeshGrid
    M557 X50:300 Y50:300 S75 ; Define mesh grid

    ; Heaters
    M307 H7 A-1 C-1 D-1 ; Disable the 7th Heater to free up PWM channel 5
    M305 P0 T100000 B4138 R4700 ; Set thermistor + ADC parameters for heater 0
    M143 H0 S120 ; Set temperature limit for heater 0 to 120C
    M305 P1 T100000 B4138 R4700 ; Set thermistor + ADC parameters for heater 1
    M143 H1 S280 ; Set temperature limit for heater 1 to 280C
    M307 H1 A306.6 C114.2 D3.6 V23.8 S1 B0
    M570 H1 P10 T15 S15 ; Configure heater fault detection (H# heater number, P time in seconds for anomaly to persist, T temp
    excursion setpoint, S time in mins before print cancelled)

    ; Fans
    M106 P0 S0.3 I0 F500 H-1 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
    M106 P1 S1 I0 F500 H1 T45 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on

    ; Tools
    M563 P0 D0 H1 ; 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

    ; Automatic power saving
    M911 S21 R23 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; Set voltage thresholds and actions to run on power loss

    ; Custom settings are not configured

    ; Miscellaneous
    M501 ; Load saved parameters from non-volatile memory



  • please update to 2.04 release and retest. there was a problem with bltouch.

    M305 P0 T100000 B4138 R4700 ; Set thermistor + ADC parameters for heater 0
    M305 P1 T100000 B4138 R4700 ; Set thermistor + ADC parameters for heater 1

    B4138 is the default and almost certainly wrong for your thermistors

    also post your config overwrite.



  • @Veti said in more bltouch issues....:

    please update to 2.04 release and retest. there was a problem with bltouch.

    M305 P0 T100000 B4138 R4700 ; Set thermistor + ADC parameters for heater 0
    M305 P1 T100000 B4138 R4700 ; Set thermistor + ADC parameters for heater 1

    B4138 is the default and almost certainly wrong for your thermistors

    also post your config overwrite.

    Currently running 2.04RC3

    I do not have a config overwrite



  • @jaurand said in more bltouch issues....:

    I do not have a config overwrite

    why do you have
    M501 ; Load saved parameters from non-volatile memory
    then?

    2.04RC3

    Please update to 2.04



  • @Veti said in more bltouch issues....:

    why do you have
    M501 ; Load saved parameters from non-volatile memory
    then?

    My guess is I deleted my old config override when I made changes and just have not ran M500 anytime since then.



  • @Veti said in more bltouch issues....:

    Please update to 2.04

    Sorry I see where the new 2.04 was updated.

    Updated firmware and still same issues



  • ok

    @jaurand said in more bltouch issues....:

    Look at the web interface and I see that Z-Probe is triggered and showing 1000.

    next step make a new extension wire. the ones supplied with the bltouch are a common source of problems.



  • @Veti new wires fixed the z probe trigger issue. Now new problems is my z-offset is too much.



  • @jaurand said in more bltouch issues....:

    Now new problems is my z-offset is too much.

    recalibrate it.



  • alright after re calibrating 5 times it is now finally working. Not sure why it took that many tries as nothing different but its working now. Other than new issue that cropped up but that is in a new thread


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