Need help programming Ender 3 Pro a d bltouch



  • I’ve ran through reprap configurator several times trying to get auto calibration set up. It starts by homing off the bed and the probe doesn’t deploy. Like it is looking for an endstop and not using the probe. The probe does deploy on start up like a test.



  • I suggest you post your config.g and homing files so we can see what the web configurator has given you.

    The fact it's doing a self test at startup is promising, that would indicate that it's wired correctly at least. The behaviour you describe would indicate that the homing files just need to be modified.

    https://duet3d.dozuki.com/Wiki/Connecting_a_Z_probe#Section_BLTouch
    https://duet3d.dozuki.com/Wiki/BLTouch_Troubleshooting
    https://duet3d.dozuki.com/Wiki/Test_and_calibrate_the_Z_probe



  • @3DEric
    do you have deploy probe and retract probe.g because it will call when you use bltouch
    and to make home at center of bed you have to modifide home z and home all .g to some thig like this

    ; homez.g
    ; called to home the Z axis
    ;
    ; generated by RepRapFirmware Configuration Tool v2.0.3 on Tue Sep 10 2019 09:03:06 GMT+0700 (Indochina Time)
    G91 ; relative positioning
    G1 Z5 F18000 S2 ; lift Z relative to current position
    G90 ; absolute positioning
    G1 X110 Y110 F18000 ; go to first probe point
    G30 ; home Z by probing the bed

    ; Uncomment the following lines to lift Z after probing
    ;G91 ; relative positioning
    ;G1 S2 Z5 F300 ; lift Z relative to current position
    ;G90 ; absolute positioning

    ; homeall.g
    ; called to home all axes
    ;
    ; generated by RepRapFirmware Configuration Tool v2.0.3 on Tue Sep 10 2019 09:03:06 GMT+0700 (Indochina Time)
    G91 ; relative positioning
    G1 Z5 F18000 S2 ; lift Z relative to current position
    G1 S1 X-235 Y-235 F1800 ; move quickly to X and Y axis endstops and stop there (first pass)
    G1 X5 Y5 F18000 ; go back a few mm
    G1 S1 X-235 Y-235 F360 ; move slowly to X and Y axis endstops once more (second pass)
    G90 ; absolute positioning
    G1 X110 Y110 F18000 ; go to first bed probe point and home Z
    G30 ; home Z by probing the bed

    ; Uncomment the following lines to lift Z after probing
    ;G91 ; relative positioning
    ;G1 S2 Z5 F300 ; lift Z relative to current position
    ;G90 ; absolute positioning

    and in deploy and retrat probe.g have a look at bltouch control command



  • @Phaedrux

    Thanks for the reply.

    Are these the right files?

    Config.g
    ; Configuration file for Duet Maestro (firmware version 2.03)
    ; executed by the firmware on start-up
    ;
    ; generated by RepRapFirmware Configuration Tool v2.0.5 on Fri Oct 18 2019 18:35:27 GMT-0400 (Eastern Daylight Time)

    ; General preferences
    G90 ; send absolute coordinates...
    M83 ; ...but relative extruder moves
    M550 P"Ender 3 Pro" ; set printer name

    ; Network
    M552 P0.0.0.0 S1 ; enable network and acquire dynamic address via DHCP
    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 Y1 Z1 S1 ; set active high endstops

    ; Z-Probe
    M558 P9 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
    M305 P0 T100000 B4092 R2200 ; set thermistor + ADC parameters for heater 0
    M143 H0 S150 ; set temperature limit for heater 0 to 150C
    M305 P1 T100000 B4092 R2200 ; set thermistor + ADC parameters for heater 1
    M143 H1 S275 ; set temperature limit for heater 1 to 275C

    ; Fans
    M106 P0 S0 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
    M106 P2 S1 I0 F500 H1:0 T45 ; set fan 2 value, PWM signal inversion and frequency. 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

    Homing

    ; homeall.g
    ; called to home all axes
    ;
    ; generated by RepRapFirmware Configuration Tool v2.0.4 on Thu Oct 10 2019 13:52:23 GMT-0400 (Eastern Daylight Time)
    G91 ; relative positioning
    G1 Z5 F6000 S2 ; lift Z relative to current position
    G1 S1 X-240 Y-240 F3000 ; move quickly to X and Y axis endstops and stop there (first pass)
    G1 X5 Y5 F6000 ; go back a few mm
    G1 S1 X-240 Y-240 F240 ; move slowly to X and Y axis endstops once more (second pass)
    G1 S1 Z-265 F3000 ; move Z down stopping at the endstop
    G90 ; absolute positioning
    G92 Z0 ; set Z to axis minimum (you may want to adjust this)

    ; Uncomment the following lines to lift Z after probing
    ;G91 ; relative positioning
    ;G1 S2 Z5 F100 ; lift Z relative to current position
    ;G90 ; absolute positioning

    ; homex.g
    ; called to home the X axis
    ;
    ; generated by RepRapFirmware Configuration Tool v2.0.4 on Thu Oct 10 2019 13:52:24 GMT-0400 (Eastern Daylight Time)
    G91 ; relative positioning
    G1 Z5 F6000 S2 ; lift Z relative to current position
    G1 S1 X-240 F3000 ; move quickly to X axis endstop and stop there (first pass)
    G1 X5 F6000 ; go back a few mm
    G1 S1 X-240 F240 ; move slowly to X axis endstop once more (second pass)
    G1 Z-5 F6000 S2 ; lower Z again
    G90 ; absolute positioning

    ; homey.g
    ; called to home the Y axis
    ;
    ; generated by RepRapFirmware Configuration Tool v2.0.4 on Thu Oct 10 2019 13:52:24 GMT-0400 (Eastern Daylight Time)
    G91 ; relative positioning
    G1 Z5 F6000 S2 ; lift Z relative to current position
    G1 S1 Y-240 F3000 ; move quickly to Y axis endstop and stop there (first pass)
    G1 Y5 F6000 ; go back a few mm
    G1 S1 Y-240 F240 ; move slowly to Y axis endstop once more (second pass)
    G1 Z-5 F6000 S2 ; lower Z again
    G90 ; absolute positioning

    ; homez.g
    ; called to home the Z axis
    ;
    ; generated by RepRapFirmware Configuration Tool v2.0.4 on Thu Oct 10 2019 13:52:24 GMT-0400 (Eastern Daylight Time)
    G91 ; relative positioning
    G1 Z5 F6000 S2 ; lift Z relative to current position
    G1 S1 Z-265 F3000 ; 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 S2 Z5 F100 ; lift Z relative to current position
    ;G90 ; absolute positioning



  • @3DEric said in Need help programming Ender 3 Pro a d bltouch:

    G1 S1 Z-265 F3000 ; move Z down stopping at the endstop
    G90 ; absolute positioning
    G92 Z0 ; set Z to axis minimum (you may want to adjust this)

    This section of home all and home z need to be replaced with a G1 X and Y move to place the probe at the center of the bed and then a G30 to probe z0.

    See example here https://duet3d.dozuki.com/Wiki/ConfiguringRepRapFirmwareCartesianPrinter#Section_Homing_Z_using_a_Z_probe


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