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    Duet 3. Probe inconsistancy

    Scheduled Pinned Locked Moved
    IR Height Sensor
    2
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    • mrenz999undefined
      mrenz999
      last edited by

      My probe seems super inconsistant. Genuine from filastruder. It triggers super high. 12.mm and then I get readings that range up to 4mm difference. Bed is PEI over sheet metal. Painted matte black underneath the PEI. I have used another surface. Same without the black matte and there is no difference. 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 16 2020 08:02:01 GMT-0700 (Pacific Daylight Time)

      ; General preferences
      G90 ; send absolute coordinates...
      M83 ; ...but relative extruder moves
      G21 ; Set units to MM
      M550 P"Duet 3" ; set printer name
      M669 K1 ; select CoreXY mode

      ;Network
      M552 S1 ; enable network
      M586 P0 S1 ; enable HTTP
      M586 P1 S0 ; disable FTP
      M586 P2 S0 ; disable Telnet

      ; Drives
      M569 P0.0 S1 ; physical drive 0.0 goes forwards
      M569 P0.1 S0 ; physical drive 0.1 goes backwards
      M569 P0.2 S1 ; physical drive 0.2 goes forwards
      M569 P0.3 S1 ; physical drive 0.3 goes forwards
      M569 P0.4 S0 ; physical drive 0.4 goes backwards
      M569 P0.5 S1 ; physical drive 0.5 goes forwards
      M569 P1.0 S0 ; physical drive 1.0 goes forwards
      M584 X0.0 Y0.1 Z0.2:0.3:0.4 E0.5:1.0 ; set drive mapping
      M350 X16 Y16 Z16 E16:16 I1 ; configure microstepping with interpolation
      M92 X100.00 Y100.00 Z400.00 E408:408 ; set steps per mm
      M566 X600.00 Y600.00 Z24.00 E300.00:300.00 ; set maximum instantaneous speed changes (mm/min)
      M203 X20000 Y20000 Z600 E2000.00:2000.00 ; set maximum speeds (mm/min)
      M201 X3000.00 Y3000.00 Z600.00 E5000.00:5000.00 ; set accelerations (mm/s^2)
      M906 X1300 Y1300 Z1300 E800:800 I30 ; set motor currents (mA) and motor idle factor in per cent
      M84 S30 ; Set idle timeout
      M671 X-55:460:460 Y150:315:40 S9 ; leadscrews at rear left, front middle and rear right

      ; Axis Limits
      M208 X Y0 Z0 S1 ; set axis minima
      M208 X410 Y410 Z465 S0 ; set axis maxima

      ; Endstops
      M574 X1 S1 P"!io0.in" ; configure active-high endstop for low end on X via pin !io0.in
      M574 Y1 S1 P"!io1.in" ; configure active-high endstop for low end on Y via pin !io1.in
      M574 Z1 S2 ; configure Z-probe endstop for low end on Z

      ; Z-Probe
      ;M950 S0 C"io7.out" ; create servo pin 0 for BLTouch
      ;M558 P9 C"^io7.in" H5 F120 T6000 ; set Z probe type to bltouch and the dive height + speeds height + speeds
      ;G31 P500 X-40 Y-10 Z6 ; set Z probe trigger value, offset and trigger height
      ;M557 X20:430 Y15:410 S20 ; define mesh grid
      Z-Probe
      M558 P8 C"^io7.out" H10 F120 T6000
      G31 P50 X-40 Y-10 Z15
      M557 X20:400 Y20:400 S50

      ; Heaters
      M308 S0 P"temp0" Y"thermistor" T100000 B4008 ; 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 S1.00 ; disable 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"temp1" Y"thermistor" T100000 B3950 ; 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
      M143 H1 S300
      M307 H0 A188.5 C683.1 D0.2 S1.0 V24.1 B0
      M307 H1 A351.2 C120.5 D7.2 S1.0 V24.1 B0

      ; Fans
      M950 F0 C"out7" Q500 ; create fan 0 on pin out7 and set its frequency
      M106 P0 S1 H-1 ; set fan 0 value. Thermostatic control is turned off
      M950 F1 C"out8" Q500 ; create fan 1 on pin out8 and set its frequency
      M106 P1 S1 H-1 ; set fan 1 value. Thermostatic control is turned off
      M950 F2 C"out9" Q500 ; create fan 2 on pin out9 and set its frequency
      M106 P2 S1 H-1 ; set fan 2 value. Thermostatic control is turned off

      ; 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

      ; Tools
      M563 P1 D1 H1 F0
      G10 P1 X0 Y0 Z0
      G10 P1 R0 S0

      ; Custom settings are not defined

      ; Miscellaneous
      T0
      M575 P1 S1 B57600 ; enable support for PanelDue
      M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power loss
      M501

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      • Phaedruxundefined
        Phaedrux Moderator
        last edited by

        Do any of the bits and bobs on the IR board look like they've been moved out of place at all? 14mm trigger height seems odd.

        If you have a plane piece of paper on the bed does it behave differently?

        Z-Bot CoreXY Build | Thingiverse Profile

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