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    Duex5 Endstop Issue

    Scheduled Pinned Locked Moved Solved
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    • 3DPrintingWorldundefined
      3DPrintingWorld
      last edited by

      I recently moved my U-axis endstop to the duex5 so I could add two filament runout sensors on my IDEX when I started to get intermittent crashes while homing the Y-axis which was actually do to the U axis not homing correctly before the Y. Its happens about every 5-20 times its homed.

      When I move the U axis endstop from the Duex5 to the WIFI the U axis homes properly and I no longer get the crash while homing Y. Why am I only having this issue with the endstop on the Duex5 but not on the WIFI?

      Config

      G90                                             ; send absolute coordinates...
      M83                                             ; ...but relative extruder moves
      M550 P"Muldex"                                  ; set printer name
      
      
      ; Network
      M552 S1                                         ; enable network
      M586 P0 S1                                      ; enable HTTP
      M586 P1 S0                                      ; disable FTP
      M586 P2 S0                                      ; disable Telnet
      
      ; Drives
      ;M569 P0 S0                                      ; X physical drive 0 goes backwards
      ;M569 P5 S1                                      ; Y right physical drive 1 goes forwards
      ;M569 P6 S0                                      ; Y left physical drive 8 goes backwards
      ;M569 P2 S1                                      ; U physical drive 2 goes backwards
      ;M569 P4 S0                                      ; E1 physical drive 3 goes forwards
      ;M569 P3 S0                                      ; Z left physical drive 5 goes backwards 0
      ;M569 P1 S0                                      ; Z center physical drive 6 goes backwards
      ;M569 P4 S1                                      ; Z right physical drive 7 goes forwards 1
      ;M569 P8 S0                                      ; E2 physical drive 4 goes forwards
      
      ; Drives
      M569 P0 S0                                      ; X physical drive 0 goes backwards
      M569 P1 S1                                      ; Y right physical drive 1 goes forwards
      M569 P2 S0                                      ; Y left physical drive 8 goes backwards
      M569 P3 S1                                      ; U physical drive 2 goes backwards
      M569 P4 S0                                      ; E1 physical drive 3 goes forwards
      M569 P5 S0                                      ; Z left physical drive 5 goes backwards 0
      M569 P6 S0                                      ; Z center physical drive 6 goes backwards
      M569 P7 S1                                      ; Z right physical drive 7 goes forwards 1
      M569 P8 S0                                      ; E2 physical drive 4 goes forwards
      
      M584 X0 Y1:2 U3 Z5:6:7 E4:8                     ; set drive mapping
      
      M350 X16 U16 Y16 Z16 E16:16 I1                                                        ; configure microstepping with interpolation
      M92 X100.00 U100.00 Y100.00:100.00 Z1096 E415.00:655.00                               ; set steps per mm (1760nimble)
      M566 X1000.00 U1000.00 Y1000.00:1000.00 Z100.00 E100.00:300.00                        ; set maximum instantaneous speed changes (mm/min)(Nimble 40)
      M203 X12000.00 U12000.00 Y12000.00:12000.00 Z2000.00 E4200.00:4200.00         ; set maximum speeds (mm/min)
      M201 X800.00 U800.00 Y800.00:800.00 Z100.00 E600.00:600.00                ; set accelerations (mm/s^2)(500)(Nimble 120)
      M906 X700 U700 Y700:700 Z200:200:200 E600:600 I30                                     ; set motor currents (mA) and motor idle factor in per cent(Nimble 500)
      M84 S30                                                                               ; Set idle timeout
      
      ; Axis Limits
      M208 X-21.4 Y0 U33 Z0 S1                        ; set axis min was (-18 BMG)16.7_X-14.4 Y0 U40 Z0 S1
      M208 X344 U414.75 Y334 Z300 S0                     ; set axis max Y WAS 339_X350 U422.7 Y334 Z300 S0(u415.7)
      
      M669 K0 Y1:1:0:1				                ; select Markforged Kinematics Y to react with X and U
      
      ; Endstops new
      M574 X1 S1 P"xstop"                             ;X axis active high endstop switch
      M574 Y2 S1 P"ystop+zstop"                       ; Y Double max active high endstop switch
      M574 U2 S1 P"duex.e2stop"                        ;U axis active high endstop switch
      M574 Z1 S2 						; Define Z to use Probe. Home to Min.
      
      ; Filament Sensor
      M591 D0 P3 C"e0stop" S0 R70:130 L24.8 E3.0 ; Duet3D rotating magnet sensor for extruder drive 0 is connected to E0 endstop input, enabled, sensitivity 24.8mm.rev, 70% to 130% tolerance, 3mm detection length
      M591 D1 P3 C"e1stop" S0 R70:130 L24.8 E3.0 ; Duet3D rotating magnet sensor for extruder drive 0 is connected to E0 endstop input, enabled, sensitivity 24.8mm.rev, 70% to 130% tolerance, 3mm detection length
      
      M591 D0 ; display filament sensor parameters for extruder drive 0
      M591 D1 ; display filament sensor parameters for extruder drive 0
      
      ; Z-Probe
      M671 X-20.6:200:420.6 Y14.3:333.3:14.3 S5       ; Locations left, center, right 
      M950 S0 C"duex.e6heat"                          ; create servo pin 0 for BLTouch
      M558 P9 C"^zprobe.in" H5 F120 T5000   ; set Z probe type to bltouch and the dive height + speeds (WAS 9000)
      G31 P25 X-29 Y0 Z1.55                             ; set Z probe trigger value, offset and trigger height(lower number farther away)1.54build 1.37glass 
      M557 X10:360 Y10:290 S20                        ; probe from X=10 to 390, Y=10 to 290mm with a mesh spacing of 20mm
      
      ; Heaters
      M308 S0 P"bedtemp" Y"thermistor" T100000 B4534 C9.565227e-8      ; 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
      M143 H0 S120                                                     ; set temperature limit for heater 0 to 120C
      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
      M308 S1 P"e0temp" Y"thermistor" T500000 B4723 C1.196220e-7 R4700 ; configure sensor 1 as thermistor on pin e0temp
      M950 H1 C"e0heat" T1                                             ; create nozzle heater output on e0heat and map it to sensor 1
      M143 H1 S280                                                     ; set temperature limit for heater 1 to 280C
      M307 H1 B0 S1.00                                                 ; disable bang-bang mode for heater  and set PWM limit
      M308 S2 P"e1temp" Y"thermistor" T500000 B4723 C1.196220e-7 R4700 ; configure sensor 2 as thermistor on pin e1temp
      M950 H2 C"e1heat" T2                                             ; create nozzle heater output on e1heat and map it to sensor 2
      M143 H2 S280                                                     ; set temperature limit for heater 2 to 280C
      M307 H2 B0 S1.01                                                 ; disable bang-bang mode for heater  and set PWM limit
      
      ; Fans
      M950 F0 C"fan0" Q500                             ; create fan 0 on pin fan0 and set its frequency
      M106 P0 S0 H-1                                   ; set fan 0 value. Thermostatic control is turned off
      M950 F1 C"fan1" Q500                             ; create fan 1 on pin fan1 and set its frequency
      M106 P1 S1 H1 T45                                ; set fan 1 value. Thermostatic control is turned on
      M950 F2 C"duex.fan4" 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
      M950 F3 C"duex.fan8" Q500                        ; create fan 3 on pin duex.fan8 and set its frequency
      M106 P3 S1 H2 T45                                ; set fan 3 value. Thermostatic control is turned on
      
      ; LEDs
      M950 F4 C"duex.fan6" ;Q500                       ; create LED 4 on pin duex.fan6 and set its frequency
      M106 P4 S255 H-1                                 ; set LED 4 value. Thermostatic control is turned OFF
      M950 F5 C"duex.fan7" ;Q500                       ; create LED 5 on pin duex.fan7 and set its frequency
      M106 P5 S255 H-1                                 ; set LED 5 value. Thermostatic control is turned OFF
      
      ; Tools
      M563 P0 D0 H1 F0 S"Left"                      ; define tool 0 Left 
      G10 P0 X0 Y0 Z0                               ; set tool 0 axis offsets y was .45
      G10 P0 R0 S0                                     ; set initial tool 0 active and standby temperatures to 0C
      
      M563 P1 D1 H2 X3 F2 S"Right"                        ; define tool 1 Right
      G10 P1 X0 Y-1.45 Z0                                  ; set tool 1 axis offsets (.5BMG) (-1.45)
      G10 P1 R0 S0                                     ; set initial tool 1 active and standby temperatures to 0C
      
      M563 P2 D0:1 H1:2 X0:3 F0:2 S"Copy"              ; define tool 2 Copy
      G10 P2 X95 Y0 U-95 S0 R0                         ; set tool 2 axis offsets (WAS 105)
      M567 P2 E1:1         
      M568 P2 S1 ; turn on mixing for tool 2           ; set mix ratio 100% on both extruders
      
      M501                                             ; Record
      
      M575 P1 S1 B57600                                ;Panel due 
      

      Homeall

      ; homeall.g
      
      ; X,U,Y Homing
      T0 P0
      G91                         ; relative positioning
      G1 H2 Z5 F2000              ; lift Z relative to current position
      G1 H1 X-475 U475 F7500      ;Rough home X and U axis
      G1 H1 X-475                  ; home X axis
      G1 H1 U475                 ; home U axis
      G1 H2 X5 U-10 F7500           ; go back a few mm
      G1 H1 Y500 F6000            ; move quickly to Y axis endstop and stop there (first pass)
      G1 Y-5  F6000               ; go back a few mm
      M584 Y1                     ; Y-axis right side 
      M574 Y2 S1 P"ystop"         ; Y-axis right side endstop Active
      G1 H1 Y15 F360              ; move slowly to Y axis endstop once more (second pass)
      M584 Y2                     ; Y-axis Left side
      M574 Y2 S1 P"zstop"        ; Y-axis left side endstop Active
      G1 H1 Y15 F360              ; move slowly to Y axis endstop once more (second pass)
      M584 Y1:2                   ; Combine Y-Axis
      M574 Y2 S1 P"ystop+zstop"  ; Y Double max active high endstop switch
      G1 Y-5  F6000               ; go back a few mm
      G1 H1 X-25 F360              ; move slowly to X axis(second pass)
      G1 H1 U25                  ; move slowly to U axis(second pass)
      G1 H2 X2 U-2 F7500              ; go back a few mm
      
      ; Z Homing
      T0 P0
      G90 G1 X219 Y150 F6000      ; Move to the center of the bed
      M558 F500                    ; Fast probing speed
      G30                          ; First probe
      M558 F50                     ; Slow probing speed
      G30                          ; Second probe
      G32                          ; Level the bed
      G90 G1 X219 Y150 F7500      ; Move to the center of the bed
      G30                          ; Bed Deviation probe
      G90 G1 X-16                  ; Park x-axis
      
      Phaedruxundefined 1 Reply Last reply Reply Quote 0
      • fcwiltundefined
        fcwilt
        last edited by

        Hi,

        What version of firmware are you running?

        Frederick

        Printers: a small Utilmaker style, a small CoreXY and a E3D MS/TC setup. Various hotends. Using Duet 3 hardware running 3.4.6

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        • 3DPrintingWorldundefined
          3DPrintingWorld
          last edited by

          Oh sorry I missed that somehow. I was running 3.2 but I had a lot of issues happen at around the time of install that I thought were related so I rolled back to 3.1.1 and recently completely erased and reinstalled 3.1.1.

          fcwiltundefined 1 Reply Last reply Reply Quote 0
          • fcwiltundefined
            fcwilt @3DPrintingWorld
            last edited by

            @3DPrintingWorld said in Duex5 Endstop Issue:

            Oh sorry I missed that somehow. I was running 3.2 but I had a lot of issues happen at around the time of install that I thought were related so I rolled back to 3.1.1 and recently completely erased and reinstalled 3.1.1.

            Firmware 3.2.0 has some issues with endstop handling causing it to miss one on occasion.

            Firmware 3.2.2 fixed that problem.

            Frederick

            Printers: a small Utilmaker style, a small CoreXY and a E3D MS/TC setup. Various hotends. Using Duet 3 hardware running 3.4.6

            3DPrintingWorldundefined 1 Reply Last reply Reply Quote 0
            • 3DPrintingWorldundefined
              3DPrintingWorld @fcwilt
              last edited by 3DPrintingWorld

              @fcwilt Ok, I've had a few other issues as well when installing 3.2 but when I reverted the other issues are still there as well.

              2/27/2021, 11:44:02 AM M122
              === Diagnostics ===
              RepRapFirmware for Duet 2 WiFi/Ethernet version 3.1.1 running on Duet WiFi 1.02 or later + DueX5
              Board ID: 08DGM-9T6BU-FG3SJ-6J1FA-3SN6J-1VYRG
              Used output buffers: 3 of 24 (20 max)
              === RTOS ===
              Static ram: 27980
              Dynamic ram: 95828 of which 44 recycled
              Exception stack ram used: 640
              Never used ram: 6580
              Tasks: NETWORK(ready,368) HEAT(blocked,1224) DUEX(suspended,160) MAIN(running,1640) IDLE(ready,80)
              Owned mutexes: WiFi(NETWORK)
              === Platform ===
              Last reset 00:46:17 ago, cause: software
              Last software reset at 2021-02-27 10:57, reason: User, spinning module GCodes, available RAM 6660 bytes (slot 2)
              Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0041f000 BFAR 0xe000ed38 SP 0xffffffff Task MAIN
              Error status: 0
              MCU temperature: min 38.5, current 39.8, max 40.3
              Supply voltage: min 24.0, current 24.2, max 24.4, under voltage events: 0, over voltage events: 0, power good: yes
              Driver 0: standstill, SG min/max 0/500
              Driver 1: standstill, SG min/max 0/490
              Driver 2: standstill, SG min/max 0/472
              Driver 3: standstill, SG min/max 0/473
              Driver 4: standstill, SG min/max not available
              Driver 5: standstill, SG min/max 0/429
              Driver 6: standstill, SG min/max 0/428
              Driver 7: standstill, SG min/max 0/397
              Driver 8: standstill, SG min/max not available
              Driver 9: standstill, SG min/max not available
              Date/time: 2021-02-27 11:44:01
              Cache data hit count 4294967295
              Slowest loop: 9.88ms; fastest: 0.13ms
              I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0, resets 0
              === Storage ===
              Free file entries: 10
              SD card 0 detected, interface speed: 20.0MBytes/sec
              SD card longest read time 4.5ms, write time 0.0ms, max retries 0
              === Move ===
              Hiccups: 0(0), FreeDm: 169, MinFreeDm: 163, MaxWait: 999248ms
              Bed compensation in use: none, comp offset 0.000
              === MainDDARing ===
              Scheduled moves: 75, completed moves: 75, StepErrors: 0, LaErrors: 0, Underruns: 0, 0 CDDA state: -1
              === AuxDDARing ===
              Scheduled moves: 0, completed moves: 0, StepErrors: 0, LaErrors: 0, Underruns: 0, 0 CDDA state: -1
              === Heat ===
              Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1 -1 -1
              Heater 1 is on, I-accum = 0.0
              === GCodes ===
              Segments left: 0
              Movement lock held by null
              HTTP is idle in state(s) 0
              Telnet is idle in state(s) 0
              File is idle in state(s) 0
              USB is idle in state(s) 0
              Aux is idle in state(s) 0
              Trigger is idle in state(s) 0
              Queue is idle in state(s) 0
              Daemon is idle in state(s) 0
              Autopause is idle in state(s) 0
              Code queue is empty.
              === Network ===
              Slowest loop: 140.13ms; fastest: 0.00ms
              Responder states: HTTP(2) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0), 0 sessions
              HTTP sessions: 1 of 8

              • WiFi -
                Network state is active
                WiFi module is connected to access point
                Failed messages: pending 0, notready 0, noresp 0
                WiFi firmware version 1.23
                WiFi MAC address 60:01:94:2e:09:23
                WiFi Vcc 3.39, reset reason Unknown
                WiFi flash size 4194304, free heap 20576
                WiFi IP address 192.168.0.65
                WiFi signal strength -62dBm, reconnections 0, sleep mode modem
                Socket states: 0 4 0 0 0 0 0 0
                === DueX ===
                Read count 1, 0.02 reads/min
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              • fcwiltundefined
                fcwilt
                last edited by

                Well the problem you describe was characteristic of firmware 3.2.0 - I never experienced it with 3.1.1 nor with 3.2.0.

                I would suggest you upgrade to 3.2.2 and see if it makes a difference.

                What is axis U used for?

                Frederick

                Printers: a small Utilmaker style, a small CoreXY and a E3D MS/TC setup. Various hotends. Using Duet 3 hardware running 3.4.6

                3DPrintingWorldundefined 1 Reply Last reply Reply Quote 0
                • 3DPrintingWorldundefined
                  3DPrintingWorld @fcwilt
                  last edited by

                  @fcwilt Its a IDEX so T1 is U axis and T0 is the X axis.

                  It homes X and U first then moves them away from the endstops. Next it homes Y to two different endstop switches to square up the gantry. There is a Y axis motor at each end of the gantry. If the U axis is not moved away from the endstop, while homing the Y it will pull the U axis towards the endstop because of the way the Dual markforged kinematics work.

                  It was hard to debug because it looked like a issue with the Y axis homing but it was actually the U axis, it just does not cause a Issue until it gets to the Y axis homing.

                  fcwiltundefined 1 Reply Last reply Reply Quote 0
                  • fcwiltundefined
                    fcwilt @3DPrintingWorld
                    last edited by

                    @3DPrintingWorld said in Duex5 Endstop Issue:
                    If the U axis is not moved away from the endstop, while homing the Y it will pull the U axis towards the endstop because of the way the Dual markforged kinematics work.

                    Well I don't know what sort of arrangement you have but having U axis motion as a "side effect" of homing Y does not sound right.

                    Can you post a diagram of the motion system as used on your printer?

                    Thanks.

                    Frederick

                    Printers: a small Utilmaker style, a small CoreXY and a E3D MS/TC setup. Various hotends. Using Duet 3 hardware running 3.4.6

                    3DPrintingWorldundefined 1 Reply Last reply Reply Quote 0
                    • 3DPrintingWorldundefined
                      3DPrintingWorld @fcwilt
                      last edited by

                      @fcwilt The Kinematics are correct, not really in question.

                      M669 K0 Y1:1:0:1. 
                      

                      Its a 0:1 or 1:0 arrangement depending on direction of travel of the Y axis.
                      MARKFORGED KINEMATICS.png

                      The issue is the U axis is not stopping at the endstop correctly when connected to the duex5. I dont think the type of kinematics plays a role. Perhaps I gave TMI.

                      1 Reply Last reply Reply Quote 0
                      • Phaedruxundefined
                        Phaedrux Moderator @3DPrintingWorld
                        last edited by Phaedrux

                        @3DPrintingWorld said in Duex5 Endstop Issue:

                        M350 X16 U16 Y16 Z16 E16:16 I1 ; configure microstepping with interpolation M92 X100.00 U100.00 Y100.00:100.00 Z1096 E415.00:655.00 ; set steps per mm (1760nimble) M566 X1000.00 U1000.00 Y1000.00:1000.00 Z100.00 E100.00:300.00 ; set maximum instantaneous speed changes (mm/min)(Nimble 40) M203 X12000.00 U12000.00 Y12000.00:12000.00 Z2000.00 E4200.00:4200.00 ; set maximum speeds (mm/min) M201 X800.00 U800.00 Y800.00:800.00 Z100.00 E600.00:600.00 ; set accelerations (mm/s^2)(500)(Nimble 120) M906 X700 U700 Y700:700 Z200:200:200 E600:600 I30 ; set motor currents (mA) and motor idle factor in per cent(Nimble 500) M84 S30

                        You only need singular values for linear axis in M350, M566, M201, M203, M906, etc. It's only extruders that require those values to be defined per drive. Once the driver has been assigned to an axis, you only need to define the settings per axis.

                        3.2.2 did fix some issues with endstops triggering very close together. So updating to 3.2.2 would be a good thing to test.

                        Also something to keep in mind with the duex is that it's usually a good idea to try and keep the Z axis motors and endstops together on the same board, probably the main board. So in your case you could have Y and Z on the mainboard and X U E on the duex. That may help avoid any timing issues.

                        This may also help with your other thread on independent Z leveling.

                        Z-Bot CoreXY Build | Thingiverse Profile

                        3DPrintingWorldundefined 1 Reply Last reply Reply Quote 0
                        • 3DPrintingWorldundefined
                          3DPrintingWorld @Phaedrux
                          last edited by

                          @Phaedrux said in Duex5 Endstop Issue:

                          You only need singular values for linear axis in M350, M566, M201, M203, M906, etc

                          This was pointed out in in the last thread. I made some large changes in experimentation and I must have reverted back to multiple values. I'll change it back but I have already confirmed that it will not have an effect. I'm assuming it defaults to the first value given.

                          It does seem like a good idea to put the endstops on the same board as the driver, but I was just trying to keep the X, Y, and U drivers on the same board. If that does not matter, I will move the U axis stepper and endstop back to the WIFI and then move both Y axis motors and endstops to the deux5.

                          Can you confirm that its ok to split drivers that work in conjunction to together on different boards? I would like to move the filament runout sensors to the deux5 but the documentation says it will not work. If its not suggested, then dual filament sensors would not be supported with my setup as I don't see a way around it.

                          I guess I will try 3.2.2 to see what happens.

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                          • Phaedruxundefined
                            Phaedrux Moderator
                            last edited by

                            @3DPrintingWorld said in Duex5 Endstop Issue:

                            Can you confirm that its ok to split drivers that work in conjunction to together on different boards?

                            Better to split X Y U than to split the drivers between a single axis, no?

                            Personally I would use the probe for leveling and abandon multiple endstops entirely.

                            Z-Bot CoreXY Build | Thingiverse Profile

                            3DPrintingWorldundefined 1 Reply Last reply Reply Quote 0
                            • 3DPrintingWorldundefined
                              3DPrintingWorld @Phaedrux
                              last edited by

                              @Phaedrux I am only using the probe to level Z. The other stepper motors each have a endstop; X, U, Y(left), Y(right). Four in total. I do use two endstops for the Y, that is required to square the gantry to the frame.

                              I have considered sensorless homing for the Y, which would free up to two spots on the WIFI. Another user in our group has had good luck with it.

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

                                Ah yes, sorry, for some reason I took your other thread about independent z leveling as the reason you were wanting to use multiple endstops.

                                Sensorless homing may be a good option. It might take some tuning though.

                                Z-Bot CoreXY Build | Thingiverse Profile

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                                • martin7404undefined
                                  martin7404
                                  last edited by martin7404

                                  Something that just came to me.
                                  I think a year ago during setting duex5 with my dual lifting extruder experiment in the documentation was stated to take power for the duex from the duetwifi terminal , not directly from PSU. I forgot about that when wiring Muldex and the power for duex comes from PSU, i think others did the same as far the wiring on the github scheme is like that. I wonder if that could be the reason. I do not belive so.link text

                                  The only reason for some troubles could be having bad GND conection between 2 boards

                                  Muldex IDEX Duet2+Duex5
                                  Custom CoreXY 600x400 Hemera , Duet3+Toolboard+1HCL closed loop
                                  Sapphire Pro with Duet2, with closed-loop motors
                                  custom high temp E3D tool changer with Duet2+Duex

                                  fcwiltundefined 1 Reply Last reply Reply Quote 0
                                  • fcwiltundefined
                                    fcwilt @martin7404
                                    last edited by

                                    @martin7404

                                    Hi,

                                    This is how I connect power to Duet 2/Duex combos.

                                    Duet WiFi Power Wiring.jpg

                                    The two wires connecting the boards are solid, the two wires from the power supply are stranded.

                                    The goal was to keep the length of wire from each board to the power supply the same so both boards see the same voltage.

                                    Frederick

                                    Printers: a small Utilmaker style, a small CoreXY and a E3D MS/TC setup. Various hotends. Using Duet 3 hardware running 3.4.6

                                    1 Reply Last reply Reply Quote 0
                                    • NexxCatundefined
                                      NexxCat
                                      last edited by

                                      I had a very similar issue when building my IDEX printer. I seem to remember finding information from @dc42 that the end-stops on the Duex2/5 were polled differently from those on the main Duet2 board. I just moved mine back to the main board and the issue went away.

                                      The issue I had was caused by the end-stop status not changing correctly or becoming stuck as triggered when it wasn't. This caused failed homing on the U axis, or failure to do a second more precise homing move after the coarse one. I verified that it was the Duex by manually triggering the end-stop and monitoring its status in DWC, where you could see it sticking. As soon as I moved it to the Duet2, it worked flawlessly.

                                      3DPrintingWorldundefined 1 Reply Last reply Reply Quote 0
                                      • martin7404undefined
                                        martin7404
                                        last edited by

                                        So with Muldex that can sol e the U problem, but with 3 Z motors on duex and Bltouch on duetwifi?

                                        Muldex IDEX Duet2+Duex5
                                        Custom CoreXY 600x400 Hemera , Duet3+Toolboard+1HCL closed loop
                                        Sapphire Pro with Duet2, with closed-loop motors
                                        custom high temp E3D tool changer with Duet2+Duex

                                        3DPrintingWorldundefined 2 Replies Last reply Reply Quote 0
                                        • 3DPrintingWorldundefined
                                          3DPrintingWorld @martin7404
                                          last edited by

                                          @martin7404 Good catch! I remember seeing that too, but I must have spaced it when I did the wiring. The wires are about 100mm long so it might be ok but I'll change it anyways.

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                                          • 3DPrintingWorldundefined
                                            3DPrintingWorld @NexxCat
                                            last edited by

                                            @NexxCat This sounds like the issue. I updated to 3.2.2 and homed it maybe 10 times and no problem so far but it can be intermittent. I test it some more today.

                                            I would move it back to the WIFI but I was hoping to use two filament runout sensors so I don't have the room on the board for both if I do.

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