• Tags
  • Documentation
  • Order
  • Register
  • Login
Duet3D Logo Duet3D
  • Tags
  • Documentation
  • Order
  • Register
  • Login

weird homing behavior

Scheduled Pinned Locked Moved
General Discussion
2
3
240
Loading More Posts
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • undefined
    secure
    last edited by 13 Jan 2022, 21:02

    Video is better to explain the problem;
    https://youtu.be/KenRduFPMmI

    I don't know why/how X triggers before it hits the switch but I think I may be trying to home the printer where it shouldn't be? X/Y switches works without any problem. Center origin X0 Y0 is the physical origin center point of the bed. The bed size 500mm x 500 mm but the axis movement limits X400 Y430 Z500 mm

    Here is my config.g code

    ; Configuration file for Duet WiFi (firmware version 3.3)
    ; executed by the firmware on start-up
    ;
    ; generated by RepRapFirmware Configuration Tool v3.3.10 on Sun Nov 28 2021 20:59:46 GMT+0300 (GMT+03:00)
    ; General preferences
    G90 ; send absolute coordinates...
    M83 ; ...but relative extruder moves
    M550 P"DUET" ; Set machine name
    M552 S1 ; Enable network
    ; Network
    M552 S1 ; enable network
    M586 P0 S1 ; enable HTTP
    M586 P1 S0 ; disable FTP
    M586 P2 S0 ; disable Telnet
    ; Drives
    M569 P1 S1 ; physical drive 0 goes backwards
    M569 P1 S0 ; physical drive 1 goes backwards
    M569 P2 S1 ; physical drive 2 goes forwards
    M569 P3 S1 ; physical drive 3 goes forwards
    M569 P4 S0 ; physical drive 4 goes forwards
    M584 X0 Y1 Z2 E3:4 ; set drive mapping
    M350 X16 Y16 Z16 E16:16 I1 ; configure microstepping with interpolation
    M92 X80.70 Y80.80 Z400.50 E100.00:100.00 ; set steps per mm
    M566 X900.00 Y900.00 Z60.00 E750.00:750.00 ; set maximum instantaneous speed changes (mm/min)
    M203 X9000.00 Y9000.00 Z200.00 E1200.00:1200.00 ; set maximum speeds (mm/min)
    M201 X500.00 Y500.00 Z60.00 E750.00:750.00 ; set accelerations (mm/s^2)
    M906 X1200 Y1200 Z1200 E1200:1200 I30 ; set motor currents (mA) and motor idle factor in per cent
    M84 S30 ; Set idle timeout
    ;M572 D0:1 S0.25 ; Linear advance
    ; Axis Limits
    M208 X-216:184, Y-215:215
    ; Endstops
    M574 X2 S1 P"xstop" ; configure switch-type (e.g. microswitch) endstop for low end on X via pin xstop
    M574 Y1 S1 P"ystop" ; configure switch-type (e.g. microswitch) endstop for low end on Y via pin ystop
    M574 Z1 S2 ; configure Z-probe endstop for low end on Z
    ; Z-Probe
    M950 S0 C"exp.heater7" ; create servo pin 0 for BLTouch
    M558 P9 C"^zprobe.in" H5 F150 T9000 ; set Z probe type to bltouch and the dive height + speeds
    G31 P500 X0 Y0 Z1.45 ; set Z probe trigger value, offset and trigger height
    M557 X-180:200 Y-180:200 S170 ; define mesh grid
    ; Heaters
    M308 S0 P"bedtemp" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin bedtemp
    M950 H0 C"bedheat" T0 ; create bed heater output on bedheat and map it to sensor 0
    M307 H0 B0 R0.588 C280.3 D7.46 S1.00 ; enable bang-bang mode for the bed heater and set PWM limit
    M140 H0 ; map heated bed to heater 0
    M143 H0 S120 ; set temperature limit for heater 0 to 120C
    M308 S1 P"e0temp" Y"thermistor" T99962 B4810 C6.7e-8 ; configure sensor 1 as thermistor on pin e0temp
    M950 H1 C"e0heat" T2 ; create nozzle heater output on e0heat and map it to sensor 1
    M307 H1 B0 R2.949 C172.9:117.9 D5.61 S1.00 V23.9 ; disable bang-bang mode for heater and set PWM limit
    M143 H1 S280 ; set temperature limit for heater 1 to 280C
    M308 S2 P"e1temp" Y"thermistor" T99962 B4810 C6.7e-8 ; configure sensor 2 as thermistor on pin e1temp
    M950 H2 C"e1heat" T1 ; create nozzle heater output on e1heat and map it to sensor 2
    M307 H2 B0 R4.803 C124.8:96.0 D9.61 S1.00 V22.8 ; disable bang-bang mode for heater and set PWM limit
    M143 H2 S280 ; set temperature limit for heater 2 to 280C
    ; Fans
    M950 F1 C"fan1" Q500 ; create fan 0 on pin fan0 and set its frequency
    M106 P1 T45 S1 H1:2 ; set fan 1 value. Thermostatic control is turned off
    M950 F0 C"fan0" Q500 ; create fan 1 on pin fan1 and set its frequency
    M106 P0 S0 H-1 ; set fan 0 value. Thermostatic control is turned on
    M950 F2 C"fan2" Q500 ; create fan 2 on pin fan2 and set its frequency
    M106 P2 S0 H-1 ; set fan 2 value. Thermostatic control is turned off
    ; Tools
    M563 P0 S"SOL" 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
    M563 P1 S"SAĞ" D1 H2 F2 ; define tool 1
    G10 P1 X0 Y0 Z0 ; set tool 1 axis offsets
    G10 P1 R0 S0 ; set initial tool 1 active and standby temperatures to 0C
    ; Custom settings are not defined
    ; homeall.g
    ; called to home all axes
    ;
    ; generated by RepRapFirmware Configuration Tool v3.3.10 on Sun Nov 28 2021 20:59:47 GMT+0300 (GMT+03:00)
    G91 ; relative positioning
    G1 H2 Z5 F9000 ; lift Z relative to current position
    G1 H1 X200 Y-220 F2400 ; move quickly to X and Y axis endstops and stop there (first pass)
    G1 H2 X-5 Y5 F6000 ; go back a few mm
    G1 H1 X200 Y-220 F600 ; move slowly to X and Y axis endstops once more (second pass)
    G90 ; absolute positioning
    G1 X0 Y0 F6000 ; go to first bed probe point and home Z
    G30 ; home Z by probing the bed
    ; homex.g
    ; called to home the X axis
    ;
    ; generated by RepRapFirmware Configuration Tool v3.3.10 on Sun Nov 28 2021 20:59:47 GMT+0300 (GMT+03:00)
    G91 ; relative positioning
    G1 H2 Z5 F9000 ; lift Z relative to current position
    G1 H1 X185 F2400 ; move quickly to X axis endstop and stop there (first pass)
    G1 H2 X-5 F9000 ; go back a few mm
    G1 H1 X185 F600 ; move slowly to X axis endstop once more (second pass)
    G1 H2 Z5 F9000 ; lower Z again
    G90 ; absolute positioning
    1 Reply Last reply Reply Quote 0
    • undefined
      Phaedrux Moderator
      last edited by 13 Jan 2022, 21:22

      What kind of endstops are they?

      Increase the distance of your homing moves to be larger than the full size of your bed. Are you have it now, it would only be able to home successfully if you start from the center of your bed.

      Are you sure your axis limits are correctly sized?

      Is this a corexy?

      Z-Bot CoreXY Build | Thingiverse Profile

      undefined 1 Reply Last reply 13 Jan 2022, 21:54 Reply Quote 0
      • undefined
        secure @Phaedrux
        last edited by 13 Jan 2022, 21:54

        @phaedrux said in weird homing behavior:

        What kind of endstops are they?

        Increase the distance of your homing moves to be larger than the full size of your bed. Are you have it now, it would only be able to home successfully if you start from the center of your bed.

        Are you sure your axis limits are correctly sized?

        Is this a corexy?

        @phaedrux said in weird homing behavior:

        What kind of endstops are they?

        Increase the distance of your homing moves to be larger than the full size of your bed. Are you have it now, it would only be able to home successfully if you start from the center of your bed.

        Are you sure your axis limits are correctly sized?

        Is this a corexy?

        • Basic micro switches

        • Exactly. It is successfully homing if the head starts from the center of the bed. If not, XY sw may trigger randomly. I tried to increase distance but not remember if it was larger than the bed size. I will try it again. Thanks

        • Yes with some margin.

        • Dual Y/Z/E, -H Bot cartesian. Fresh built.
          WhatsApp Image 2022-01-14 at 00.52.26.jpeg

        1 Reply Last reply Reply Quote 0
        3 out of 3
        • First post
          3/3
          Last post
        Unless otherwise noted, all forum content is licensed under CC-BY-SA