Y endstop getting no respect.



  • So … I have a Cartesian printer that I'm setting up with a Duet3dWiFi. Just by happenstance of wiring, X and Z are "forwards" and Y is "backwards"... so I have:

    M569 P0 S1 ; Drive 0 goes forwards
    M569 P1 S0 ; Drive 1 goes backwards
    M569 P2 S1 ; Drive 2 goes forwards

    Then later on I have:

    M574 X1 Y1 Z1 S0 ; Set active low endstops

    ... now I've also tried Y2 there... but the Y axis (the printbed in this instance) slams against the Y stop and then proceeds to grind the belt for awhile. Now... the LED representing the Y stop lights... so what gives? How do I fix this?

    For reference, here's the totality of config.g:

    ; Configuration file for Duet WiFi (firmware version 1.20 or newer)
    ; executed by the firmware on start-up
    ;
    ; generated by RepRapFirmware Configuration Tool on Fri Mar 02 2018 16:36:01 GMT-0500 (EST)

    ; General preferences
    G90 ; Send absolute coordinates...
    M83 ; ...but relative extruder moves
    M555 P0 ; Set firmware compatibility to look like native output

    ; Network
    M550 PMy printer ; Set machine name
    M551 Phr92tkam ; Set password
    M552 S1 ; Enable network
    M587 S"ac.DaveG.ca" P"ac.DaveG.ca" I192.168.221.42 J192.168.221.1 K255.255.255.0 ; Configure access point and IP addresses. You can delete this line once connected
    M586 P0 S1 ; Enable HTTP
    M586 P1 S0 ; Disable FTP
    M586 P2 S0 ; Disable Telnet

    ; Drives
    M569 P0 S1 ; Drive 0 goes forwards
    M569 P1 S0 ; Drive 1 goes backwards
    M569 P2 S1 ; Drive 2 goes forwards
    M569 P3 S1 ; Drive 3 goes forwards
    M350 X16 Y16 Z16 E16 I0 ; Configure microstepping without interpolation
    M92 X100 Y100 Z5128 E600 ; Set steps per mm
    M566 X900 Y900 Z12 E120 ; Set maximum instantaneous speed changes (mm/min)
    M203 X30000 Y30000 Z180 E1200 ; Set maximum speeds (mm/min)
    M201 X500 Y20 Z100 E250 ; Set accelerations (mm/s^2)
    M906 X800 Y1200 Z2000 E800 I30 ; 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 X200 Y200 Z200 S0 ; Set axis maxima

    ; Endstops
    M574 X1 Y2 Z1 S0 ; Set active low endstops
    M558 P0 H5 F60 T6000 ; Set Z probe type to switch and the dive height + speeds
    G31 P600 X0 Y0 Z0.5 ; Set Z probe trigger value, offset and trigger height
    M557 X15:185 Y15:185 S20 ; Define mesh grid

    ; Heaters
    M301 H0 S1.00 P10 I0.1 D200 T0.4 W180 B30 ; Use PID on bed heater (may require further tuning)
    M305 P0 T100000 B3950 C0 R4700 ; Set thermistor + ADC parameters for heater 0
    M143 H0 S120 ; Set temperature limit for heater 0 to 120C
    M305 P1 T100000 B4725 C7.060000e-8 R4700 ; Set thermistor + ADC parameters for heater 1
    M143 H1 S280 ; Set temperature limit for heater 1 to 280C

    ; Fans
    M106 P0 B1 S1 I0 F10 H1 T45:140 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned on
    M106 P1 S1 I0 F500 H0:1 T45 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on
    M106 P2 S1 I0 F500 H-1 ; Set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned off

    ; 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

    ; Miscellaneous
    M501 ; Load saved parameters from non-volatile memory
    T0 ; Select first tool


  • administrators

    Please test your endstops as described in the commissioning tests at https://duet3d.dozuki.com/Wiki/Step_by_step_guide.

    What type of endstop is it?



  • OK. I solved that, but I ended up with more confusion.

    For the X, say, -ve X travells towards the endstop. Pressing "home" travels to the endstop and then sets the X position as '0'.

    Y is backwards, but it's configured that way (see above). -ve Y movement moves towards the endstop, but after pressing 'home' for Y, and the bed travelling to the endstop, the Y value is set to 200 … so the bed effectively cannot move (200 is the max Y).



  • NM. Solved this problem. The web config somehow put in a y2 in the endstop list rather than y1. Odd that homing still went in the right direction.


 

Looks like your connection to Duet3D was lost, please wait while we try to reconnect.