Error: Z probe already triggered

  • Hi guys

    So I finally got everything working.

    Went to manually calibrate my kossel xl and found that I could get the xyz towers to pass the paper test but couldn't get the z height to sit level.

    It always ended up higher after I calibrated the tower points.

    So I decided to use the z probe that came with the printer in hopes it'll help me out abit, which is a Micro switch bolted to the effector and made from a safety pin, pen spring and a paper clip.

    Anyway so I have wired the endstop switch to E0 and without the 3.3v pin. Changed to mode 4, then I tried adding the command m558 with the l1 parameter.

    Setup the bed and config files and went to auto calibrate and it gave me an error at every point that the z probe has been triggered before the probe as begun.

    I have changed the m558 l1 parameter to l0 with no success, m119 showed z min stop active and i just cant seem to be able to get it to revert the micro switch to think that it's not active when it is active.

    Any help will be appreciated

    Thanks in advance guys

    Config File:

    ; Configuration file for Mini Kossel kit from Think3DPrint3D for testing Duet WiFi
    ; Communication and general
    M111 S0                             	; Debug off
    M550 PMiniKosselWiFiTest		; Machine name and Netbios name (can be anything you like)
    M551 Preprap                        	; Machine password (used for FTP)
    ;*** If you have more than one Duet on your network, they must all have different MAC addresses, so change the last digits
    M540 P0xBE:0xEF:0xDE:0xAD:0xFE:0xED 	; MAC Address
    ;*** Wifi Networking
    M552 S1				; Enable WiFi
    M555 P2                           	; Set output to look like Marlin
    M575 P1 B57600 S1			; Comms parameters for PanelDue
    G21                                 	; Work in millimetres
    G90                                	; Send absolute coordinates...
    M83                                 	; ...but relative extruder moves
    ; Axis and motor configuration
    M569 P0 S1				; Drive 0 (X) goes forwards
    M569 P1 S1				; Drive 1 (Y) goes forwards
    M569 P2 S1				; Drive 2 (z) goes forwards
    M569 P3 S1				; Drive 3 (E0) goes forwards
    M569 P4 S1				; Drive 4 (E1) goes forwards
    M574 X2 Y2 Z2 S1			; set endstop configuration (all endstops at high end, active high)
    ;*** The homed height is deliberately set too high in the following - you will adjust it during calibration
    M665 R178.01 L330 B125 H375.55  	; set delta radius, diagonal rod length, printable radius and homed height
    M666 X-1.90 Y-4.30 Z-3.00			; put your endstop adjustments here, or let auto calibration find them
    M350 X16 Y16 E16 I1    			; Set 16x microstepping with interpolation
    M92 X80 Y80 Z80				; Set axis steps/mm
    M906 X550 Y550 Z550 E750 I60		; Set motor currents (mA) and increase idle current to 60%
    M201 X1000 Y1000 Z1000 E1000		; Accelerations (mm/s^2)
    M203 X20000 Y20000 Z20000 E3600		; Maximum speeds (mm/min)
    M566 X1200 Y1200 Z1200 E1200		; Maximum instant speed changes mm/minute
    ; Thermistors
    M305 P0 T100000 B3950 R4700 H30 L0	; Put your own H and/or L values here to set the bed thermistor ADC correction
    M305 P1 T100000 B3974 R4700 H30 L0	; Put your own H and/or L values here to set the first nozzle thermistor ADC correction
    M305 P2 T100000 B3974 R4700 H30 L0	; Put your own H and/or L values here to set the second nozzle thermistor ADC correction
    M570 S180				; Hot end may be a little slow to heat up so allow it 180 seconds
    ; Fans
    M106 P1 H-1 				; disable thermostatic mode for fan 1
    ; Tool definitions
    M563 P0 D0 H1                       	; Define tool 0
    G10 P0 S0 R0                        	; Set tool 0 operating and standby temperatures
    ;*** If you have a single-nozzle build, comment the next 2 lines
    ;M563 P1 D1 H2                      	; Define tool 1
    ;G10 P1 S0 R0                       	; Set tool 1 operating and standby temperatures
    M92 E663:663                       	; Set extruder steps per mm
    ; Z probe and compensation definition
    ;*** If you have a switch instead of an IR probe, change P1 to P4 in the following M558 command
    M558 P4 X0 Y0 Z0 L1			; Z probe is an IR probe and is not used for homing any axes
    G31 X0 Y0 Z5.00 P500			; Set the zprobe height and threshold (put your own values here)
    ;*** If you are using axis compensation, put the figures in the following command
    M556 S78 X0 Y0 Z0                   	; Axis compensation here
    M208 S1 Z-0.1				; set minimum Z
    T0					; select first hot end

    Bed File:

    ; Clear any bed transform
    ; Probe the bed at 10 peripheral and 6 halfway points, and perform 7-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 Y119.9 H3 Z-99999
    G30 P1 X70.48 Y97 H3 Z-99999
    G30 P2 X114.03 Y37.05 H3 Z-99999
    G30 P3 X114.03 Y-37.05 H3 Z-99999
    G30 P4 X70.48 Y-97 H3 Z-99999
    G30 P5 X0 Y-119.9 H3 Z-99999
    G30 P6 X-70.48 Y-97 H3 Z-99999
    G30 P7 X-114.03 Y-37.05 H3 Z-99999
    G30 P8 X-114.03 Y37.05 H3 Z-99999
    G30 P9 X-70.48 Y97 H3 Z-99999
    G30 P10 X0 Y59.9 H3 Z-99999
    G30 P11 X51.88 Y29.95 H3 Z-99999
    G30 P12 X51.88 Y-29.95 H3 Z-99999
    G30 P13 X0 Y-59.9 H3 Z-99999
    G30 P14 X-51.88 Y-29.95 H3 Z-99999
    G30 P15 X-51.88 Y29.95 H3 Z-99999
    G30 P16 X0 Y0 H3 Z-99999 S7
    ; 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)

  • administrators

    Is it the sort of Z probe that you need to deploy by drawing the arm across a belt so that the probe tip springs into place?

  • It could be but I have just been putting it into place by hand. Then trying to get the endstop switch to revert so that it activates when released rather then being pushed.

    My max endstops act like that when I have them set on S0 instead of S1.

    So thought that this z prove would be the same concept.

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