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    IDEX HOMING ISSUES

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    • Rolluxundefined
      Rollux @Proschi3D
      last edited by

      @Proschi78 U axis is the only axis that is working as it should. X and y are not for some reason not working properly.
      Have erased and re flashed the sd card, tried a fresh config from the 3.5 configurator and it gets even worse i.e x axis goes the opposite direction to the end stop regardless of changing directions, min/max parameters, y axiis jolts and stops.
      as for the 3.4 config, x axis speeds up then slows down, travels along incredibly slowly then does it's double tap. Y axis is hit and miss as to whether it will home or jolt and stop. U axis on 3.4 config works as expected every time without fail. very confusing as there is zero consistency as to the behaviors as when all axis will home, they wont home again due to the aforementioned erratic behaviors.

      Proschi3Dundefined deckingmanundefined 2 Replies Last reply Reply Quote 0
      • Proschi3Dundefined
        Proschi3D @Rollux
        last edited by

        @Rollux Are your end stops working properly? Are the motors running in the right direction?

        Love my Duet 3 Mini.
        https://www.instagram.com/proschi3d
        https://youtube.com/@proschi3d
        https://www.proschi3d.de

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        • Rolluxundefined
          Rollux @Proschi3D
          last edited by

          @Proschi78 end stops trigger when either touched by motor or by finger for testing, motors all go in correct direction (when working). When homing z, the axis still drops back 5 mm after touching off, lifting 5 and dropping again, these lines have been removed so shouldn't be doing that but only probes once and not twice.

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          • deckingmanundefined
            deckingman @Rollux
            last edited by

            @Rollux Looking at your config.g, unless I missed it, I don't see any M669 command to define the Kinematics for your machine. I'm not sure what the default is but it may be Cartesian - it almost certainly won't have a U axis by default. Send M669 without any parameters to see what it reports. Link to documentation is here https://docs.duet3d.com/User_manual/Reference/Gcodes#m669-set-kinematics-type-and-kinematics-parameters

            Ian
            https://somei3deas.wordpress.com/
            https://www.youtube.com/@deckingman

            Rolluxundefined 2 Replies Last reply Reply Quote 0
            • Rolluxundefined
              Rollux @deckingman
              last edited by

              @deckingman said in IDEX HOMING ISSUES:

              M669

              6/3/2024, 4:48:42 PM M669
              Kinematics is Cartesian, no segmentation, matrix:
              1.00 0 0 0
              0 1.00 0 0
              0 0 1.00 0
              0 0 0 1.00

              im wondering if there is some stuff "stuck" in the mb6hc cache/memory that might be affecting things?

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              • Rolluxundefined
                Rollux @deckingman
                last edited by

                @deckingman U Axis.mp4 X Axis.mp4 Y Axis.mp4

                Proschi3Dundefined 1 Reply Last reply Reply Quote 0
                • Proschi3Dundefined
                  Proschi3D @Rollux
                  last edited by Proschi3D

                  @Rollux
                  increase the x value to x-450

                  ; called to home all axes
                  ;
                  ; generated by RepRapFirmware Configuration Tool v3.4.1 on Sun May 26 2024 18:23:03 GMT+0800 (Australian Western Standard Time)
                  G91                               ; relative positioning
                  G1 H2 Z5 F6000                    ; lift Z relative to current position
                  G1 H1 X-450 Y-430 U0 F1800         ; move quickly to X Y and U axis endstops and stop there (first pass)
                  G1 H2 X5 Y5 U-5 F6000             ; go back a few mm
                  G1 H1 X-450 Y-4300 U0 F360         ; move slowly to X Y and U axis endstops once more (second pass)
                  G90
                  G1 F6000 X243 Y200 
                  G30                               ; absolute positioning
                  G29 S1                            ; this loads the contents of /sys/heightmap.csv
                  

                  Love my Duet 3 Mini.
                  https://www.instagram.com/proschi3d
                  https://youtube.com/@proschi3d
                  https://www.proschi3d.de

                  Rolluxundefined 1 Reply Last reply Reply Quote 0
                  • Rolluxundefined
                    Rollux @Proschi3D
                    last edited by

                    @Proschi78
                    Increased the x value to x-450.
                    Individual homing works fine when selected separately.
                    Home all on the other hand is inconsistent still. During "home all", when the x axis triggers the end stop, the y axis will also trigger even though it has not yet hit the end stop. Bltouch will lower, trigger, raise 5mm then drop 5mm (not sure where else the lines of code for this are found as i have removed all i can find as i want the z axis to not drop down after probing).
                    Also, the z axis moves up or down when making manual moves via the panel due or dwc. Ifeel there is something somewhere that is conflicting. All the boards were well outdated (3.3 beta from memory) as they have been sitting for a while so wondering if a hard reset of the main board and the 3xc are in order?

                    Proschi3Dundefined 1 Reply Last reply Reply Quote 0
                    • Proschi3Dundefined
                      Proschi3D @Rollux
                      last edited by

                      @Rollux
                      try this as homeall

                      M561
                      G91
                      G1 H2 Z5 F6000               ; raise head 4mm to keep it clear of the bed
                      G1 H1 X-450 Y-450 U0 F3000 ; coarse home X, Y and U
                      G1 X5 Y5 U-5 F3000           ; move 4mm away from the homing switches 
                      G1 H1 X-400 Y-430 U0 F600      ; fine home X, Y and U
                      G90 ; absolute positioning
                      ; Now home Z using the Z probe
                      G1 X243 Y200 F3000  ; move to bed centre for probing
                      G30 ; probe the bed and set Z height
                      G1 x-450 y-430 U0 F3000
                      G29 S1
                      

                      Love my Duet 3 Mini.
                      https://www.instagram.com/proschi3d
                      https://youtube.com/@proschi3d
                      https://www.proschi3d.de

                      Rolluxundefined Proschi3Dundefined 2 Replies Last reply Reply Quote 0
                      • Rolluxundefined
                        Rollux @Proschi3D
                        last edited by

                        @Proschi78
                        Y axis doesnt move. Wont re home manually without a re boot. Reboot the board, Y axis "triggers" at the same point as the x axis regardless of position.
                        Thinking will reset the mainboard and re flash firmware as something may be hanging around from all the updates and the like.

                        deckingmanundefined 1 Reply Last reply Reply Quote 0
                        • deckingmanundefined
                          deckingman @Rollux
                          last edited by

                          @Rollux If all the individual homing files work, then you could call them individually for home all.

                          e.g. homeall could be..........

                          M98 P"homex.g"
                          M98 P"homeu.g"
                          M98 P "homey.g"
                          M98 P"homez.g"
                          

                          Try that - if it works, then the problem is with your homeall.g, if it doesn't then the problem is elsewhere.

                          Ian
                          https://somei3deas.wordpress.com/
                          https://www.youtube.com/@deckingman

                          Rolluxundefined 1 Reply Last reply Reply Quote 0
                          • Rolluxundefined
                            Rollux @deckingman
                            last edited by

                            @deckingman
                            Success there on the first try. Then move everything around and try again. X and U axis home perfectly. . Y axis jumps and then does nothing and get the following error: Error: in file macro line 17: M98: expected a string expression.

                            Going to have a look at the y axis endstop
                            m119
                            Endstops - X: at min stop, Y: at min stop, Z: no endstop, U: at max stop, Z probe: not stopped

                            As it is one the "pcb board" style ones, wondering if it has failed but that doesnt explain why it works once or twice then nothing.

                            Rolluxundefined 1 Reply Last reply Reply Quote 0
                            • Rolluxundefined
                              Rollux @Rollux
                              last edited by

                              Replaced the endstop with a pare makerbot pcb style. Same issue. Check wiring, all is good. Hard reset. All homed perfectly, repeatedly. Then back to the same issue of the y axis bumping in the opposite direction if the end stop and failing to home.

                              Rolluxundefined 1 Reply Last reply Reply Quote 0
                              • Rolluxundefined
                                Rollux @Rollux
                                last edited by

                                "Home all" using individual axis works as expected. However, homing individual axis via dwc or panel due, Y axis does not want to work. Incredibly confusing.

                                Rolluxundefined 1 Reply Last reply Reply Quote 0
                                • Rolluxundefined
                                  Rollux @Rollux
                                  last edited by

                                  Current homeall.g
                                  This works somewhat, the U axis homes after x,y,z regardless of U axis position.

                                  Also when homing z, the z jumps up and down and the x and y jump around. Video Attached of whats happening.

                                  G91                               ; relative positioning
                                  G1 H2 Z5 F6000                    ; lift Z relative to current position
                                  G1 H1 X-450 F5000        ; move quickly to X Y and U axis endstops and stop there (first pass)
                                  G1 H1 U0 F5000
                                  G1 H1 Y-450 F5000
                                  G1 H2 X5 F6000             ; go back a few mm
                                  G1 H2 U-5 F6000
                                  G1 H2 Y5 F6000
                                  G1 H1 X-450 F360         ; move slowly to X Y and U axis endstops once more (second pass)
                                  G1 H1 U0 F360
                                  G1 H1 Y-450 F360
                                  G1 F6000 X243 Y200 
                                  G30
                                  G90                               ; absolute positioning
                                  G29 S1                            ; this loads the contents of /sys/heightmap.csv
                                  
                                  [Home All.mp4](/assets/uploads/files/1717502002687-home-all.mp4) 
                                  
                                  Rolluxundefined 1 Reply Last reply Reply Quote 0
                                  • Rolluxundefined
                                    Rollux @Rollux
                                    last edited by

                                    Home All.mp4

                                    Proschi3Dundefined 1 Reply Last reply Reply Quote 0
                                    • Proschi3Dundefined
                                      Proschi3D @Rollux
                                      last edited by

                                      @Rollux

                                      It looks to me like the mesh bed compensation is going on a total roller coaster ride. Can you disable it before homing

                                      Love my Duet 3 Mini.
                                      https://www.instagram.com/proschi3d
                                      https://youtube.com/@proschi3d
                                      https://www.proschi3d.de

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                                      • Proschi3Dundefined
                                        Proschi3D @Proschi3D
                                        last edited by

                                        @Proschi78 said in IDEX HOMING ISSUES:

                                        @Rollux
                                        try this as homeall

                                        Can you take over the code with copy paste for homeall that I posted here?

                                        M561
                                        G91
                                        G1 H2 Z5 F6000               ; raise head 4mm to keep it clear of the bed
                                        G1 H1 X-450 Y-450 U0 F3000 ; coarse home X, Y and U
                                        G1 X5 Y5 U-5 F3000           ; move 4mm away from the homing switches 
                                        G1 H1 X-400 Y-430 U0 F600      ; fine home X, Y and U
                                        G90 ; absolute positioning
                                        ; Now home Z using the Z probe
                                        G1 X243 Y200 F3000  ; move to bed centre for probing
                                        G30 ; probe the bed and set Z height
                                        G1 x-450 y-430 U0 F3000
                                        G29 S1
                                        

                                        Love my Duet 3 Mini.
                                        https://www.instagram.com/proschi3d
                                        https://youtube.com/@proschi3d
                                        https://www.proschi3d.de

                                        Rolluxundefined 2 Replies Last reply Reply Quote 0
                                        • Rolluxundefined
                                          Rollux @Proschi3D
                                          last edited by

                                          @Proschi78 Will give this a try tomorrow, unable to connect to the printer at the moment as having internet/router issues and pc vs printer location makes ethernet connection not viable.

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                                          • Rolluxundefined
                                            Rollux @Proschi3D
                                            last edited by

                                            @Proschi78

                                            Tried the above and the movement behaviour became consistently erratic. Not sure as to why. Reverted back to the below and seems to be have "settled" to a somewhat normal behaviour. Potentially might reset the mbh6c and expansion board back to square one. Potentially the firmware updates may have left some things stuck which shouldnt be the case but never know as all the boards were still on 3.2 beta firmware when started up this time round.

                                            M561
                                            G91                               ; relative positioning
                                            G1 H2 Z5 F6000                    ; lift Z relative to current position
                                            G1 H1 X-450 F5000                 ; move quickly to X Y and U axis endstops and stop there (first pass)
                                            G1 H1 U0 F5000
                                            G1 H1 Y-450 F5000
                                            G1 H2 X5 F6000                    ; go back a few mm
                                            G1 H2 U-5 F6000
                                            G1 H2 Y5 F6000
                                            G1 H1 X-450 F360                 ; move slowly to X Y and U axis endstops once more (second pass)
                                            G1 H1 U0 F360
                                            G1 H1 Y-450 F360
                                            G1 F6000 X243 Y200 
                                            G30
                                            G90                               ; absolute positioning
                                            G29 S1                            ; this loads the contents of /sys/heightmap.csv
                                            
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