Issues with M206, homing, leveling and probing



  • After finishing building my new printer I starte to tune dimensions and macros of my old printer to the new.

    Both are coreXY but the dimensions limits changed a little.

    For a start, the X0 Y0 is offset -60mm for Y. So I used M206 Y-60 to set this offset.

    There is where my problems start!

    If I manually, gcode by gcode, apply my home all macro then it works flawlessly but I execute a G28 a G0 command to send the tool to X132 Y156 send it to X132 Y96!!!!! But only when executed from the G28 or home all DWC button. If I do line per line all goes well.

    The same happens for the G32, that I use with dual lead screws to correct the tilt of the bed. And so with the mesh commands of G29 - if I execute from the console the go to the correct XY coordinates. If I command from macros or system macros then they consider Y-60 as Y0 and the too goes out of the bed...

    What am I doing wrong?

    Firmware: 2.02RC3

    My config.g concerned part:
    ; Axis Limits
    M206 Y-60
    M208 X0 Y0 Z0 S1 ; Set axis minima
    M208 X294 Y330 Z270 S0 ; Set axis maxima (needed to set the maxima as +60!!!!! why?? My real max is 270mm!!!!)

    My homeall.g
    ; homeall.g
    ; called to home all axes
    ;
    ; Home XY for Z homing
    ;
    G91 ; relative positioning
    G1 Z5 F200 S2 ; lift head relative to current position
    M400 ; make sure everything has stopped before we make changes
    M913 X50 Y50 ; set X Y motors to 50% of their normal current for homing
    M98 P"0:/sys/m_set_low_speeds.g" ; set lower Z speeds and accelerations
    ; Home XY for Z homing
    ;
    ;==============Home X====================
    ;
    G1 S1 X-305 Y-335 F4800 ; move quickly diagonally to hit X or Y
    M400
    G1 X5 Y5 F1000 ; go back a few mm
    G1 S1 X-305 F4800 ; move quickly to X axis
    G1 X5 F1000 ; go back a few mm

    ;==============Home Y====================
    ;
    M400
    G1 S1 Y-335 F4800 ; move quickly to X axis endstop and stop there (first pass)
    G1 Y5 F1000 ; go back a few mm
    ;==============Home Z====================
    ;
    M400
    G90 ; absolute positioning
    G0 X132 Y156 F4000 ; move to center of bed

    ; Probe the bed
    ;
    M558 A1 F350 ; Set single probing at faster feed rate
    G30 ; Do a single probe to home our Z axis
    M558 A10 F100 ; Set tripple probing at slower feed rate
    G30 ; Probe again to get a more accurate position

    M400 ; make sure everything has stopped before we make changes
    M98 P"0:/sys/m_set_normal_speeds.g" ; set normal Z speeds and accelerations
    M913 X100 Y100 ; set X Y motors to 100% of their normal current


  • administrators

    When you say the offset is -60mm for Y, do you mean that the Y homing switch triggers at Y=-60mm? If so then you should change the first M208 command to:

    M208 X0 Y-60 Z0 S1 ; Set axis minima

    and not use M206 at all. See https://duet3d.dozuki.com/Wiki/Centering_the_bed_or_setting_the_bed_origin.



  • Thank you! Solved! 😄



  • Hello,
    Greetings from YD.

    My problem is related to Delta homing.

    Whenever I try to home X, Y and Z axes, all the axes go 5 mm up and stop. I have tried all the possibilities that came to my mind. But all failed.

    1. Changed stepper motor with higher current rating and holding torque
    2. Tried all the possibilities with GCode and Mcode.

    So I hereby seek expert advice.

    My Config. g file is as follows:

    ; Configuration file for Duet WiFi (firmware version 1.21)
    ; executed by the firmware on start-up
    ;
    ; generated by RepRapFirmware Configuration Tool v2 on Tue Dec 04 2018 11:34:12 GMT+0530 (India Standard Time)

    ; General preferences
    G21 ; All units in millimeters
    G90 ; Send absolute coordinates...
    M83 ; ...but relative extruder moves
    M665 R105.6 L340 B85 H500 ; Set delta radius, diagonal rod length, printable radius and homed height
    M666 X0 Y0 Z0 ; Put your endstop adjustments here, or let auto calibration find them

    ; Network
    M550 P"My Printer" ; Set machine name
    M552 S1 ; Enable network
    ;*** Access point is configured manually via M587
    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 S1 ; Drive 3 goes forwards
    M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
    M92 X100.00 Y100.00 Z100.00 E663.00 ; Set steps per mm
    M566 X1200.00 Y1200.00 Z1200.00 E1200.00 ; Set maximum instantaneous speed changes (mm/min)
    M203 X18000.00 Y18000.00 Z18000.00 E1200.00 ; Set maximum speeds (mm/min)
    M201 X1000.00 Y1000.00 Z1000.00 E1000.00 ; Set accelerations (mm/s^2)
    M906 X1000.00 Y1000.00 Z1000.00 E800.00 I30 ; Set motor currents (mA) and motor idle factor in per cent
    M84 S30 ; Set idle timeout

    ; Axis Limits
    M208 Z0 S1 ; Set minimum Z

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

    ; Z-Probe
    M558 P0 H5 F120 T6000 ; Disable Z probe but set dive height, probe speed and travel speed
    M557 R85 S20 ; Define mesh grid

    ; Heaters
    M305 P0 T100000 B4138 R4700 ; Set thermistor + ADC parameters for heater 0
    M143 H0 S120 ; Set temperature limit for heater 0 to 120C
    M305 P1 T100000 B4138 R4700 ; Set thermistor + ADC parameters for heater 1
    M143 H1 S280 ; Set temperature limit for heater 1 to 280C

    ; Fans
    M106 P0 S0.3 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

    and my homedelta.g file is as follows:

    ; homedelta.g
    ; called to home all towers on a delta printer
    ;
    ; generated by RepRapFirmware Configuration Tool v2 on Tue Dec 04 2018 11:34:12 GMT+0530 (India Standard Time)

    G91 ; relative positioning
    G1 S1 X500 Y500 Z500 F1800 ; move all towers to the high end stopping at the endstops (first pass)
    G1 X-5 Y-5 Z-5 F1800 S2 ; go down a few mm
    G1 S1 X10 Y10 Z10 F360 ; move all towers up once more (second pass)
    G1 Z-5 F6000 ; move down a few mm so that the nozzle can be centred
    G90 ; absolute positioning
    G1 X0 Y0 F6000 ; move X+Y to the centre

    Kindly help me to resolve the issue.



  • Further my X and Y axes work perfectly fine as in for X+10 Y + 10, they both go up by 10 mm but for Z+5. Z axis comes down 5 mm. Code for this as follows:

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

    OR

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

    In either case, the same problem was observed.

    I tried changing the polarities only for Z. When i changed the polarities for Z, it was observed that during homing movement, X and Y went up but Z went down.

    Further I tried with Duet3D code that came with DUET wifi board in an SD card. WIth that also, the delta homing is not happening.

    So i am hereby messed up totally with Delta configuration, but my CoreXY is working nicely (at least printing).

    Kindly provide your valuable help for Delta printer configuration.



  • @dc42 Hello,
    Greetings from YD.

    My problem is related to Delta homing.

    Whenever I try to home X, Y and Z axes, all the axes go 5 mm up and stop. I have tried all the possibilities that came to my mind. But all failed.

    Changed stepper motor with higher current rating and holding torque
    Tried all the possibilities with GCode and Mcode.
    So I hereby seek expert advice.

    My Config. g file is as follows:

    ; Configuration file for Duet WiFi (firmware version 1.21)
    ; executed by the firmware on start-up
    ;
    ; generated by RepRapFirmware Configuration Tool v2 on Tue Dec 04 2018 11:34:12 GMT+0530 (India Standard Time)

    ; General preferences
    G21 ; All units in millimeters
    G90 ; Send absolute coordinates...
    M83 ; ...but relative extruder moves
    M665 R105.6 L340 B85 H500 ; Set delta radius, diagonal rod length, printable radius and homed height
    M666 X0 Y0 Z0 ; Put your endstop adjustments here, or let auto calibration find them

    ; Network
    M550 P"My Printer" ; Set machine name
    M552 S1 ; Enable network
    ;*** Access point is configured manually via M587
    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 S1 ; Drive 1 goes forwards
    M569 P2 S1 ; Drive 2 goes forwards
    M569 P3 S1 ; Drive 3 goes forwards
    M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
    M92 X100.00 Y100.00 Z100.00 E663.00 ; Set steps per mm
    M566 X1200.00 Y1200.00 Z1200.00 E1200.00 ; Set maximum instantaneous speed changes (mm/min)
    M203 X18000.00 Y18000.00 Z18000.00 E1200.00 ; Set maximum speeds (mm/min)
    M201 X1000.00 Y1000.00 Z1000.00 E1000.00 ; Set accelerations (mm/s^2)
    M906 X1000.00 Y1000.00 Z1000.00 E800.00 I30 ; Set motor currents (mA) and motor idle factor in per cent
    M84 S30 ; Set idle timeout

    ; Axis Limits
    M208 Z0 S1 ; Set minimum Z

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

    ; Z-Probe
    M558 P0 H5 F120 T6000 ; Disable Z probe but set dive height, probe speed and travel speed
    M557 R85 S20 ; Define mesh grid

    ; Heaters
    M305 P0 T100000 B4138 R4700 ; Set thermistor + ADC parameters for heater 0
    M143 H0 S120 ; Set temperature limit for heater 0 to 120C
    M305 P1 T100000 B4138 R4700 ; Set thermistor + ADC parameters for heater 1
    M143 H1 S280 ; Set temperature limit for heater 1 to 280C

    ; Fans
    M106 P0 S0.3 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

    and my homedelta.g file is as follows:

    ; homedelta.g
    ; called to home all towers on a delta printer
    ;
    ; generated by RepRapFirmware Configuration Tool v2 on Tue Dec 04 2018 11:34:12 GMT+0530 (India Standard Time)

    G91 ; relative positioning
    G1 S1 X500 Y500 Z500 F1800 ; move all towers to the high end stopping at the endstops (first pass)
    G1 X-5 Y-5 Z-5 F1800 S2 ; go down a few mm
    G1 S1 X10 Y10 Z10 F360 ; move all towers up once more (second pass)
    G1 Z-5 F6000 ; move down a few mm so that the nozzle can be centred
    G90 ; absolute positioning
    G1 X0 Y0 F6000 ; move X+Y to the centre

    Kindly help me to resolve the issue.

    Further my X and Y axes work perfectly fine as in for X+10 Y + 10, they both go up by 10 mm but for Z+5. Z axis comes down 5 mm. Code for this as follows:

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

    OR

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

    In either case, the same problem was observed.

    I tried changing the polarities only for Z. When i changed the polarities for Z, it was observed that during homing movement, X and Y went up but Z went down.

    Further I tried with Duet3D code that came with DUET wifi board in an SD card. WIth that also, the delta homing is not happening.

    So i am hereby messed up totally with Delta configuration, but my CoreXY is working nicely (at least printing).

    Kindly provide your valuable help for Delta printer configuration.



  • @yd14 You should probably start a new thread for your problem rather than posting in a thread that is already marked as solved.


 

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