Z-probe Smart effector is not working competely

  • Hello,

    i am switching my Anycubic predator to an Duet Wifi and an smart effector.

    If i test the Z-Probe, the probe led is flashing shortly when i tap on the noozle.

    But when i try to do a single probing with G30, than the noozle hits the heatbed, but no led is on.

    If i try to test the g30 with hand in the air, i have to use a little bit " speed", that the z-probe will be active. If i try it slow, nothing happen.

    My config.g
    ; General preferences
    G90 ; Send absolute coordinates...
    M83 ; ...but relative extruder moves

    ; Delta Settings
    M665 L440.000 R227 H430.0 B185.0 ; Set delta radius, diagonal rod length, printable radius and homed height
    M666 X0 Y0 Z0 A0.00 B0.00 ; Put your endstop adjustments here, or let auto calibration find them

    ; Network
    M550 P"Anycubic Predator" ; Set machine name
    M551 P"" ; Set password
    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 ; Drive 0 goes forwards
    M569 P1 S0 ; Drive 1 goes forwards
    M569 P2 S0 ; Drive 2 goes forwards
    M569 P3 S0 ; Drive 3 goes forwards
    M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
    M92 X80.00 Y80.00 Z80.00 E380.45 ; Set steps per mm
    M566 X1000 Y1000 Z1000 E1000 ; Set maximum instantaneous speed changes (mm/min)
    M203 X12000.00 Y12000.00 Z12000.00 E10000 ; Set maximum speeds (mm/min)
    M201 X3000.00 Y3000.00 Z3000.00 E3000.00 ; Set accelerations (mm/s^2)
    M906 X1000.00 Y1000.00 Z1000.00 E1000.00 I30 ; Set motor currents (mA) and motor idle factor in per cent
    M84 S30 ; Set idle timeout

    ; Retraction
    M207 S4.0 F5000 R-0.025 T2500 Z0.5 ; Firmware retraction

    ; Axis Limits
    M208 Z0 S1 ; Set minimum Z

    ; Endstops
    M574 X2 Y2 Z2 S1 ; Set active high endstops

    ; Z-Probe
    M558 P5 H3 F120 T6000 ; Set Z probe type to switch and the dive height + speeds
    G31 P500 X0 Y0 Z16.0 ; Set Z probe trigger value, offset and trigger height
    M557 R115 S20 ; Define mesh grid
    G29 S1 ; Load the heightmap

    ; Heaters
    M307 H0 A137.8 C533.3 D1.5 V24.3 B0 ; Disable bang-bang mode for the bed heater and set PWM limit
    M305 P0 T100000 B4300 C0 R4700 ; Set thermistor + ADC parameters for heater 0
    M143 H0 S120 ; Set temperature limit for heater 0 to 120C
    M305 P1 T100000 B4300 C0 R4700 ; Set thermistor + ADC parameters for heater 1
    M143 H1 S240 ; Set temperature limit for heater 1 to 240C

    ; 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

    ; 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 saving after power loss is not enabled

    ; Custom settings are not configured
    M572 D0 S0.1 ; Pressure Advance
    M591 D0 P2 C4 S1 ; Activate filament sensor
    M404 N1.75 ; Set for print monitor
    M592 D0 A0.07772 B-0.00029 ; Nonlinear extrusion. Set parameters for extruder drive 0

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


    ; called to perform automatic delta calibration via G32
    ; generated by RepRapFirmware Configuration Tool v2 on Mon Apr 08 2019 07:52:58 GMT+0100 (British Summer Time)
    M561 ; clear any bed transform
    G28 ; home all towers
    ; Probe the bed at 6 peripheral and 6 halfway points, and perform 6-factor auto compensation
    ; Before running this, you should have set up your Z-probe trigger height to suit your build, in the G31 command in config.g.
    G30 P0 X0 Y169.9 H0 Z-99999
    G30 P1 X147.14 Y84.95 H0 Z-99999
    G30 P2 X147.14 Y-84.95 H0 Z-99999
    G30 P3 X0 Y-169.9 H0 Z-99999
    G30 P4 X-147.14 Y-84.95 H0 Z-99999
    G30 P5 X-147.14 Y84.95 H0 Z-99999
    G30 P6 X0 Y84.9 H0 Z-99999
    G30 P7 X73.53 Y42.45 H0 Z-99999
    G30 P8 X73.53 Y-42.45 H0 Z-99999
    G30 P9 X0 Y-84.9 H0 Z-99999
    G30 P10 X-73.53 Y-42.45 H0 Z-99999
    G30 P11 X-73.53 Y42.45 H0 Z-99999
    G30 P12 X0 Y0 H0 Z-99999 S6
    ; Use S-1 for measurements only, without calculations. Use S4 for endstop heights and Z-height only. Use S6 for full 6 factors
    ; If your Z probe has significantly different trigger heights depending on XY position, adjust the H parameters in the G30 commands accordingly. The value of each H parameter should be (trigger height at that XY position) - (trigger height at centre of bed)

    Maybe someone have an idea what to do ?

    Best regards


  • Hi Chris,

    It's recommended to the P8 for the smart effector rather than P5.
    See here

    My fairly up to date config files for my predator with smart effector can be found here


  • Hello Jay,

    if i change the Type to P8, then i am only getting an manual probing display.

    With P5, the probe is working, but only one time, the second time i am getting an error

    G30S S-1
    Error: Z probe was not triggered during probing move
    G30 S-1
    Stopped at height -2.786 mm

    If i move to slow to test the probe, nothing happened, if i move fast, then the led is on

  • Hi Chris,

    Have a look at your probe trigger height as well.
    The line should read "G31 P100 X0 Y0 Z-0.1"
    You should also have "R0.4" in your M558 command to set the trigger recovery time as per the smart effector commissioning instructions.

    You also seem to have typed the gcode in wrong.
    G30S S-1

    Theres an extra "S" in there.

    I would also look at your thermistor settings for the hot end. I'm assuming you've changed to the E3D hot end + the E3D thermistor? In which case you should have "M305 P1 T100000 B4725 C7.06e-8"


  • Hello Jay,

    i have not checked all firmware settings at the moment i am only at the z-problem issue.

    I have checked all your points, but i have to choose P5 for the z probe, with P8 and G30 -s1 i am only getting the manual bed probing.

    if i drive the nozzle to an hard object in 0,1mm steps and the noozle hit the object, the led remains dark.

    If i use 10mm steps, then the hit causes an green led.

    I ve checked all cables for the z-probe, everthing has contact and seems fine.

    I am coming from core XY side and there i only use plates without zprobes 😉


  • I have found the solution. I have to change the sensitifity of the probe a little bit.

    Now it is working as intended ( i hope so .. ) , but my bed is really not flat...

  • administrators

    @fragle said in Z-probe Smart effector is not working competely:

    M558 P5 H3 F120 T6000 ; Set Z probe type to switch and the dive height + speeds

    The probing speed you have set (120) is too slow for the Smart Effector, and you have left out the recovery time parameter as has already been pointed out. Please read the setup instructions.

Log in to reply