Coupler homing fail, possibly mechanical.

Discussion in 'Tool heads & ToolChanger' started by Dylan Hamm, May 18, 2020.

  1. Dylan Hamm

    Dylan Hamm Member

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    So...

    Everything was working fine for about a week, I got my final tool up and running, and set my pre, and post parameters for pickup location in the config for this tool.

    Next time I hit home all, my coupler stepper rotates to home, and continues attempting to rotate, making a continuous popping sound.

    My guess, after adjusting all the stall limit settings to a much higher sensitivity, is that with the default value of 5, that my stepper stripped itself?

    I just ordered 2 more Coupler stepper motors, with the sound coming from the motor clicking, I don't think that's a stall, has anyone else had issues with their couplers?

    Below is my Config in case I somehow thumbed a self destruct command before restarting:



    ; Configurat; Configuration file for Duet WiFi / Ethernet
    ; executed by the firmware on start-up

    ; General preferences
    M111 S0 ; Debugging off
    G21 ; Work in millimetres
    G90 ; Send absolute coordinates...
    M83 ; ...but relative extruder moves
    M555 P2 ; Set firmware compatibility to look like Marlin

    ; Network
    ; Read https://duet3d.dozuki.com/Wiki/Gcod...o_remembered_list_or_list_remembered_networks
    M550 P"ToolChanger" ; Set machine name
    M552 S1 ; Enable Networking
    M586 P0 S1 ; Enable HTTP
    M586 P1 S0 ; Disable FTP
    M586 P2 S0 ; Disable Telnet

    M667 S1 ; Select CoreXY mode

    ; Endstops
    M574 X1 Y1 S3 ; Set X / Y endstop stall detection
    M574 Z1 S2 ; Set Z endstop probe
    M558 P7 X0 Y0 Z2 H3 F360 I0 T20000 ; Set Z probe type to switch, the axes for which it is used and the dive height + speeds
    G31 P200 X0 Y0 Z0 ; Set Z probe trigger value, offset and trigger height
    M557 X10:290 Y20:180 S40 ; Define mesh grid

    ; Drive direction
    M569 P0 S0 ; Drive 0 X
    M569 P1 S0 ; Drive 1 Y
    M569 P2 S1 ; Drive 2 Z
    M569 P9 S0 ; Drive 3 E0
    M569 P3 S1 ; Drive 4 E3
    M569 P6 S0 ; Drive 5 E2
    M569 P5 S1 ; Drive 6 UNUSED
    M569 P7 S0 ; Drive 7 COUPLER
    M569 P8 S0 ; Drive 8 UNUSED
    M569 P9 S0 ; Drive 9 UNUSED

    M584 X0 Y1 Z2 C7 E9:6:3 ; Apply custom drive mapping
    M208 X-35:328.5 Y-49:243 Z0:300 C0:500 S0 ; Set axis maxima & minima
    M350 E8:8:8:8 C8 I0 ; Configure microstepping without interpolation
    M350 X16 Y16 Z16 I1 ; Configure microstepping with interpolation
    M92 X100 Y100 Z1600 C100 E417:417:417:417 ; Set steps per mm
    M566 X400 Y400 Z8 C2 E2:2:2:2 ; Set maximum instantaneous speed changes (mm/min)
    M203 X35000 Y35000 Z1200 C5000 E5000:5000:5000:5000 ; Set maximum speeds (mm/min)
    M201 X6000 Y6000 Z400 C400 E2500:2500:2500:2500 ; Set accelerations (mm/s^2)
    M906 X2000 Y2000 Z1330 C400 E1680:1680:1680:1680 I30 ; Set motor currents (mA) and motor idle factor in percent
    M84 S120 ; Set idle timeout

    ;Stall Detection
    M915 C S-10 F0 H200 R4700 ; Coupler
    ;Stall reduced power
    M913 C50

    ;Stall Detection
    M915 X Y Z S5 F0 H400 R4700 ; X / Y Axes (Added Z in case of probe failure)

    ; Heaters
    M305 P0 T100000 B4138 C0 ; Set thermistor
    M143 H0 S225 ; Set temperature limit for heater 0 to 225C

    M305 S"T0" P1 R4700 T100000 B4388 ; Set thermistor
    M143 H1 S300 A0 C0 ; Set temperature limit for heater 1 to 325C

    M305 S"T1" P2 R4700 T100000 B4388 ; Set thermistor
    M143 H2 S300 ; Set temperature limit for heater 2 to 300C

    M305 S"T2" P3 R4700 T100000 B4388 ;Set thermistor
    M143 H3 S300 ; Set temperature limit for heater 3 to 300C

    M305 S"T3" P4 X200 ; Set thermistor (PT100 sensor settings)
    M143 H4 S300 ; Set temperature limit for heater 4 to 300C


    ; Tools
    M563 P0 S"T0" D0 H1 ; Define tool 0
    G10 P0 X0 Y0 Z0 ; Reset tool 0 axis offsets
    G10 P0 R0 S0 ; Reset initial tool 0 active and standby temperatures to 0C

    M563 P1 S"T1" D1 H2 ; Define tool 1
    G10 P1 X0 Y0 Z0 ; Reset tool 1 axis offsets
    G10 P1 R0 S0 ; Reset initial tool 1 active and standby temperatures to 0C

    M563 P2 S"T2" D2 H3 ; Define tool 2
    G10 P2 X0 Y0 Z0 ; Reset tool 2 axis offsets
    G10 P2 R0 S0 ; Reset initial tool 2 active and standby temperatures to 0C

    M563 P3 S"T3" D3 H4 ; Define tool 3
    G10 P3 X0 Y0 Z0 ; Reset tool 3 axis offsets
    G10 P3 R0 S0 ; Reset initial tool 3 active and standby temperatures to 0C

    ; Fans
    M106 P0 S0 ; UNUSED
    M106 P1 S255 H1 T70 ; T0 HE
    M106 P2 S0 ; T0 PCF
    M106 P3 S255 H2 T70 ; T1 HE
    M106 P4 S0 ; T1 PCF
    M106 P5 S255 H3 T70 ; T2 HE
    M106 P6 S0 ; T2 PCF
    M106 P4 S255 H4 T70 ; T3 HE
    M106 P3 S0 ; T3 PCF

    M593 F50 ; cancel ringing at 50Hz (https://forum.e3d-online.com/thread...nance-measurements-of-the-motion-system.3445/)
    ;M376 H15 ; bed compensation taper

    ;tool offsets
    G10 P0 X16.5 Y72.5 Z-8.55 ; T0
    G10 P1 X-9 Y39 Z-5 ; T1
    G10 P2 X16.5 Y72.5 Z-8.55 ; T2
    G10 P3 X-9 Y39 Z-5 ; T3

    ;deselect tools
    T-1

    ;M572 D0 S0.2 ; pressure advance T0
    ;M572 D1 S0.2 ; pressure advance T1
    ;M572 D2 S0.2 ; pressure advance T2
    ;M572 D3 S0.2 ; pressure advance T3
     

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