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    duet exp3hc lost connection with main board

    Scheduled Pinned Locked Moved Solved
    Duet Hardware and wiring
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    • danny777undefined
      danny777
      last edited by

      Re: Duet 3 Expansion looses connection while printing

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      • Phaedruxundefined
        Phaedrux Moderator
        last edited by

        Please add more detail.

        Z-Bot CoreXY Build | Thingiverse Profile

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        • danny777undefined
          danny777
          last edited by Phaedrux

          HI,

          Thank you for your response,
          Attached my config,
          My printer is (self build)1000X1000X1000mm config.g
          I have 4 z stepper motors for Z(nema23)
          2 steppers for Y(nema 17)
          1 for X (nema 17)
          1 extruder

          As I said It worked perfect for for few days (about 5 hours consecutive evry job ) until the exp3hc lost connection with main board,
          for now I work only with main board Duet 3 mb6hc , because the exp3hc board is not connecting to main board,

          M; Configuration file for Duet 3 (firmware version 3)
          ; executed by the firmware on start-up
          ;
          ; generated by RepRapFirmware Configuration Tool v3.2.3 on Tue Jul 27 2021 22:03:56 GMT+0300 (שעון ישראל (קיץ))
          
          ; General preferences
          G90                                            ; send absolute coordinates...
          M83; ...but relative extruder moves
          M575 P1 B57600 S1
          M550 P"DANNY YOSEF"                             ; set printer name
          
          ; Network
          M552 P0.0.0.0 S1                               ; enable network and acquire dynamic address via DHCP
          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                                  ; physical drive 0.1 goes forwards
          M569 P0.1 S0
          M569 P0.2 S1                                   ; physical drive 0.2 goes backwards
          M569 P0.3 S0
          M569 P0.4 S0
          M569 P0.5 S0                                 
          M584 X0.0 Y0.1:2 Z0.3:4 E0.5                       ; set drive mapping
          M350 X16 Y16 Z16 E16 I1                        ; configure microstepping with interpolation
          M92 X80.00 Y80.00 Z800.00 E461.00            ; set steps per mm
          M566 X900.00 Y900.00 Z60.00 E120.00            ; set maximum instantaneous speed changes (mm/min)
          M203 X6000.00 Y6000.00 Z180.00 E1200.00        ; set maximum speeds (mm/min)
          M201 X500.00 Y500.00 Z20.00 E250.00            ; set accelerations (mm/s^2)
          M906 X800 Y1200 Z1600 E800 I30                   ; set motor currents (mA) and motor idle factor in per cent
          M84 S30; Set idle timeout
          M564 H0
          
          ; Axis Limits
          M208 X0 Y0 Z0 S1                               ; set axis minima
          M208 X900 Y900 Z900 S0                         ; set axis maxima
          
          ; Endstops
          M574 X1 S1 P"io3.in"                           ; configure active-high endstop for low end on X via pin io3.in
          M574 Y1 S1 P"io4.in"                           ; configure active-high endstop for low end on Y via pin io4.in
          M574 Z1 S1 P"io1.in"                           ; configure active-high endstop for low end on Z via pin io1.in
           
          
          ; Z-Probe
          M558 P0 H5 F120 T6000                          ; disable Z probe but set dive height, probe speed and travel speed
          M557 X15:215 Y15:195 S20                       ; define mesh grid
          
          ; Heaters
          M308 S0 P"temp1" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin temp1
          M950 H0 C"out0" T0                           ; create bed heater output on out0 and map it to sensor 0
          M307 H0 B0 R0.162 C464.9 D14.33 S1.00 V24.0                           
          M140 H0                                      ; map heated bed to heater 0
          
          M143 H0 S120                                 ; set temperature limit for heater 0 to 120C
          M308 S1 P"temp0" Y"thermistor" T100000 B4138 ; configure sensor 1 as thermistor on pin temp0
          M950 H1 C"out1" T1                           ; create nozzle heater output on out1 and map it to sensor 1
           M307 H1 B0 R1.953 C202.4 D4.78 S1.00 V24.0
          M307 H1 B0 S1.00                             ; disable bang-bang mode for heater  and set PWM limit
          M143 H1 S260                         ; Set temperature limit for heater 1 to 260C
          
          
          ; Fans
          M950 F0 C"out5" Q500                         ; create fan 0 on pin out7 and set its frequency
          M106 P0 S0 H-1                               ; set fan 0 value. Thermostatic control is turned off
          M950 F1 C"out4" Q500                         ; create fan 1 on pin out8 and set its frequency
          M106 P0 S1 H1 T45                            ; set fan 1 value. Thermostatic control is turned on ; set fan 1 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
          T0
          
          ; Custom settings are not defined
          M997 S1
          
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          • Phaedruxundefined
            Phaedrux Moderator
            last edited by Phaedrux

            Please keep your posts together in this thread.

            Please connect the expansion board and send M122 and M122 B#, where # is the can bus address of the expansion board and copy and paste the resulting report here.

            What LEDs are lit on the expansion board?

            Can you post a photo of your wiring on the expansion board?

            ; Custom settings are not defined
            M997 S1
            

            You probably shouldn't have this command in config.g Not sure why you would need or want to flash the wifi firmware at boot up, especially on a board that doesn't have a wifi module.

            Z-Bot CoreXY Build | Thingiverse Profile

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            • danny777undefined
              danny777
              last edited by

              Hi,
              Unfortunately when I connected the
              Exp3hc to the power and can, I saw Smoke from the endstop conectors area, (never used them),dont think its right to use it,
              I did conect only red and black and the can cable,

              Any idea?

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              • Phaedruxundefined
                Phaedrux Moderator
                last edited by

                Can you post some photos of the wiring and damage?

                Z-Bot CoreXY Build | Thingiverse Profile

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                • danny777undefined
                  danny777
                  last edited by

                  Attached photo,
                  The exp3hc is not conect now to main board /power
                  I used the exp3hc only for X axis and extruder '
                  WhatsApp Image 2021-08-18 at 22.14.07.jpeg

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                  • Phaedruxundefined
                    Phaedrux Moderator
                    last edited by

                    Can you show a closer photo of the circled area with more light?

                    What LEDs are lit on the expansion board if any when it is connected?

                    Z-Bot CoreXY Build | Thingiverse Profile

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                    • danny777undefined
                      danny777
                      last edited by

                      WhatsApp Image 2021-08-18 at 22.53.39.jpeg WhatsApp Image 2021-08-18 at 22.53.50.jpeg

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                      • Phaedruxundefined
                        Phaedrux Moderator
                        last edited by

                        Can you describe for us how and what you had connected to the expansion board at the time it failed?

                        Z-Bot CoreXY Build | Thingiverse Profile

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                        • danny777undefined
                          danny777
                          last edited by

                          -power from main board (+-) as shown in the photo
                          -X stepper was conect to driver 1
                          -extruder stepper was conect to driver 2
                          -RJ11 cable was conect to can in from main board
                          nothing else was connect to that board

                          I did use for cables connectors that I got with the board

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                          • Phaedruxundefined
                            Phaedrux Moderator
                            last edited by

                            The connections sound pretty standard. This may be a case of premature component failure.

                            When and where did you purchase the board? It may be covered by warranty.

                            Z-Bot CoreXY Build | Thingiverse Profile

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                            • danny777undefined
                              danny777
                              last edited by

                              I bought it from "Rav Meimad"
                              The Israeli reseller on 22.7.21

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                              • Phaedruxundefined
                                Phaedrux Moderator
                                last edited by

                                Please send an email to warranty@duet3d.com and CC your reseller. Include a link to this forum thread and the details of your original purchase. You'll receive a reply with a form to fill out.

                                Z-Bot CoreXY Build | Thingiverse Profile

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                                • danny777undefined
                                  danny777
                                  last edited by

                                  HI,
                                  Can I we posts together in this thread?

                                  Phaedruxundefined 1 Reply Last reply Reply Quote 0
                                  • Phaedruxundefined
                                    Phaedrux Moderator @danny777
                                    last edited by

                                    @danny777 Let's stick to your other thread.

                                    Z-Bot CoreXY Build | Thingiverse Profile

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