True Auto Level 4ZAxis.NOT Working



  • hey,
    I tried to install a true autolevel with 4 z axis.
    But It comes to an error.
    ´´Cant reach point´´.
    Anybody knows what is happening?
    thanks

    Duet 3
    Send code...
    Status
    Off
    Mode: FFF
    Tool Position
    X
    0.0
    Y
    0.0
    Z
    0.00
    Extruder Drives
    Drive 0
    0.0
    Drive 1
    0.0
    Drive 2
    0.0
    Drive 3
    0.0
    Drive 4
    0.0
    Drive 5
    0.0
    Speeds
    Requested Speed
    0 mm/s
    Top Speed
    0 mm/s
    Sensors
    Z-Probe
    1000
    Tools
    Extra
    Control All
    Tool Heater Current Active Standby
    Tool 0
    T0 - Load Filament Heater 1
    off -273.1 C
    0
    0
    Bed Heater 0
    off 22.3 C
    0
    0
    Temperature Chart
    Macros Directory

    sys
    0:/macros/sys/config.g
    ; Configuration file for Duet 3 (firmware version 3)
    ; executed by the firmware on start-up
    ;
    ; generated by RepRapFirmware Configuration Tool v3.1.3 on Tue Jun 23 2020 22:36:44 GMT+0200 (Mitteleuropäische Sommerzeit)

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

    ; Drives
    M569 P0.0 S1 ; physical drive 0.0 goes forwards
    M569 P0.1 S1 ; physical drive 0.1 goes forwards
    M569 P0.2 S1 ; physical drive 0.2 goes forwards
    M569 P0.3 S1 ; physical drive 0.3 goes forwards
    M569 P0.4 S1 ; physical drive 0.4 goes forwards
    M569 P0.5 S1 ; physical drive 0.5 goes forwards
    M569 P1.0 S1 ; physical drive 1.0 goes forwards
    M569 P1.1 S1 ; physical drive 1.1 goes forwards
    M569 P1.2 S1 ; physical drive 1.2 goes forwards
    M584 X0.0 Y0.1 Z0.2:0.3:0.4:0.5 E1.0:1.1:1.2 ; set drive mapping
    M350 X16 Y16 Z16 E16:16:16:16:16:16 I1 ; configure microstepping with interpolation
    M92 X80.00 Y80.00 Z1600.00 E1600.00:1600.00:1600.00:92.70:92.70:92.70 ; set steps per mm
    M566 X900.00 Y900.00 Z12.00 E120.00:120.00:120.00:120.00:120.00:120.00 ; set maximum instantaneous speed changes (mm/min)
    M203 X6000.00 Y6000.00 Z3600.00 E3600.00:3600.00:3600.00:1200.00:1200.00:1200.00 ; set maximum speeds (mm/min)
    M201 X500.00 Y500.00 Z20.00 E250.00:250.00:250.00:250.00:250.00:250.00 ; set accelerations (mm/s^2)
    M906 X1200 Y1200 Z3000 E3000:3000:3000:1200:1200:1200 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 X800 Y800 Z800 S0 ; set axis maxima

    ; Endstops
    M574 X2 S1 P"!io3.in" ; configure active-high endstop for high end on X via pin !io3.in
    M574 Y2 S1 P"!io0.in" ; configure active-high endstop for high end on Y via pin !io0.in

    ; Z-Probe
    M558 P9 C"io4.in" H15 F120 T400 ; set Z probe type to bltouch and the dive height + speeds
    M950 S0 C"io4.out" ; create servo pin 0 for BLTouch
    G31 P500 X20 Y100 Z4 ; set Z probe trigger value, offset and trigger height
    M557 X15:650 Y15:650 S60 ; define mesh grid

    ; Heaters
    M308 S0 P"temp0" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin temp0
    M950 H0 C"out0" T0 ; create bed heater output on out0 and map it to sensor 0
    M307 H0 B0 S0.10 ; disable bang-bang mode for the bed heater and set PWM limit
    M140 H0 ; map heated bed to heater 0
    M143 H0 S90 ; set temperature limit for heater 0 to 90C
    M308 S1 P"temp1" Y"thermistor" T100000 B4138 ; configure sensor 1 as thermistor on pin temp1
    M950 H1 C"out1" T1 ; create nozzle heater output on out1 and map it to sensor 1
    M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit

    ; Fans
    M950 F0 C"out3" Q500 ; create fan 0 on pin out3 and set its frequency
    M106 P0 S0.8 H-1 ; set fan 0 value. Thermostatic control is turned off
    M950 F1 C"out7" Q500 ; create fan 1 on pin out7 and set its frequency
    M106 P1 S1 H-1 ; set fan 1 value. Thermostatic control is turned off
    M950 F2 C"out8" Q500 ; create fan 2 on pin out8 and set its frequency
    M106 P2 S1 H T45 ; set fan 2 value. 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
    M671 X-12:92:92:-12 Y185:185:615:615 S4

    ; Miscellaneous
    M501 ; load saved parameters from non-volatile memory
    M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power

    deploy----------------------------
    ; deployprobe.g
    ; called to deploy a physical Z probe
    ;
    ; generated by RepRapFirmware Configuration Tool v3.1.3 on Tue Jun 23 2020 22:36:44 GMT+0200 (Mitteleuropäische Sommerzeit)
    M280 P0 S10 ; deploy BLTouch

    retract.g--------------------------------
    ; retractprobe.g
    ; called to retract a physical Z probe
    ;
    ; generated by RepRapFirmware Configuration Tool v3.1.3 on Tue Jun 23 2020 22:36:44 GMT+0200 (Mitteleuropäische Sommerzeit)
    M280 P0 S90 ; retract BLTouch

    homez.g-------------------------
    ; homez.g
    ; called to home the Z axis
    ;
    ; generated by RepRapFirmware Configuration Tool v3.1.3 on Thu Jun 25 2020 00:21:12 GMT+0200 (Mitteleuropäische Sommerzeit)
    G91 ; relative positioning
    G1 H2 Z5 F6000 ; lift Z relative to current position
    G90 ; absolute positioning
    G1 X15 Y15 F6000 ; go to first probe point
    G30 ; home Z by probing the bed

    ; bed.g
    ; Called using G32
    ; Called to perform True Autolevel using 4-point probe
    ;
    ; generated by RepRapFirmware Configuration Tool v3.1.3 on Tue Jun 23 2020 22:36:44 GMT+0200 (Mitteleuropäische Sommerzeit)

    M561 ; clear any bed transform
    G29 S3; Clear bed height map
    ; Probe 4-point
    M401 ; Deploy probe - deployprobe.g
    G30 P0 X200 Y185 Z-9999 ; Front Right
    G30 P1 X600 Y185 Z-9999 ; Front Left
    G30 P2 X600 Y615 Z-9999 ; Back Left
    G30 P3 X200 Y615 Z-9999 S4 ; Back Right
    M402 ; Retract Probe - retractprobe.g



  • @barbarossa-cologne said in True Auto Level 4ZAxis.NOT Working:

    G31 P500 X20 Y100

    Are you shure, that the y-offset of the probe is 100mm?



  • @DIY-O-Sphere
    No haha
    Thats my first own g.code etc.
    so there are some mistakes I think.



  • but that shouldn´t be the problem... the nozzle is running out of the heatbed area.


  • Moderator

    Well your probe offset definitely needs to be correct to begin with.

    https://duet3d.dozuki.com/Wiki/Test_and_calibrate_the_Z_probe#Section_Measuring_Probe_X_Y_Offset

    @barbarossa-cologne said in True Auto Level 4ZAxis.NOT Working:

    M671 X-12:92:92:-12 Y185:185:615:615 S4

    Then you need to have the points of the lead screws as close as possible, though not exact.

    ; bed.g
    ; Called using G32
    ; Called to perform True Autolevel using 4-point probe
    ;
    ; generated by RepRapFirmware Configuration Tool v3.1.3 on Tue Jun 23 2020 22:36:44 GMT+0200 (Mitteleuropäische Sommerzeit)

    M561 ; clear any bed transform
    G29 S3; Clear bed height map
    ; Probe 4-point
    M401 ; Deploy probe - deployprobe.g
    G30 P0 X200 Y185 Z-9999 ; Front Right
    G30 P1 X600 Y185 Z-9999 ; Front Left
    G30 P2 X600 Y615 Z-9999 ; Back Left
    G30 P3 X200 Y615 Z-9999 S4 ; Back Right
    M402 ; Retract Probe - retractprobe.g

    Then your bed.g points must position the nozzle, such that the probe is as close as possible to the lead screws.

    https://duet3d.dozuki.com/Wiki/Bed_levelling_using_multiple_independent_Z_motors



  • @Phaedrux
    Ok. I'll adjust this



  • @barbarossa-cologne said in True Auto Level 4ZAxis.NOT Working:

    but that shouldn´t be the problem... the nozzle is running out of the heatbed area.

    That might be right for the positiv side.
    But as far as I know, the grid defenition of
    M557 X15:650 Y15:650 S60 in combination with the probe offset X20 and Y100
    would result in a movement of the nozzle to X-5 and Y-85, which is outside of the minium limit. So the points are not reachable....


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