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    Unreliable Homing in one Axis

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    • fcwiltundefined
      fcwilt @Superbrain8
      last edited by

      @superbrain8 said in Unreliable Homing in one Axis:

      @fcwilt didnt worked out, behavior persists.

      OK.

      What sort of endstop sensors are you using?

      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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      • Superbrain8undefined
        Superbrain8 @fcwilt
        last edited by

        @fcwilt Inductive endstops that come with the Artillery Sidewinder.

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        • fcwiltundefined
          fcwilt @Superbrain8
          last edited by fcwilt

          @superbrain8 said in Unreliable Homing in one Axis:

          @fcwilt Inductive endstops that come with the Artillery Sidewinder.

          OK.

          Since it appears to be a intermittent problem I would next see if the leads of the sensor are running close to the leads to a stepper motor.

          It might be noise induced into the sensor leads.

          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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          • Superbrain8undefined
            Superbrain8 @fcwilt
            last edited by Superbrain8

            @fcwilt probably is the issue, replaced the ribbon cable itself with individual wires, but i guess i have to optimize this more
            (issue was present with the stock ribbon cable connecting the axis to the base, from there to the mainboard)
            the thing is this issue was not present while running Marlin and klipper

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            • fcwiltundefined
              fcwilt @Superbrain8
              last edited by

              @superbrain8 said in Unreliable Homing in one Axis:

              the thing is this issue was not present while running Marlin and klipper

              Possibly the Duet firmware has a quicker response time OR the other firmware has "de-bounce code" which can also help with ignoring transients.

              Only @dc42 would know.

              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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              • Superbrain8undefined
                Superbrain8 @fcwilt
                last edited by

                @fcwilt ok thanks,
                will look into rerouting some of the wire and see if it will improve the situation.

                jay_s_ukundefined 1 Reply Last reply Reply Quote 0
                • Superbrain8undefined Superbrain8 marked this topic as a question
                • Superbrain8undefined Superbrain8 has marked this topic as solved
                • jay_s_ukundefined
                  jay_s_uk @Superbrain8
                  last edited by

                  @superbrain8 we've had a number of users with the sidewinder where endstops have been an issue as well as the wagster mod for the bltouch causing the pin to randomly deploy. its definitely the dodgy ribbon used for wiring.

                  Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is

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                  • Superbrain8undefined
                    Superbrain8 @jay_s_uk
                    last edited by

                    @jay_s_uk this solves another issue, thanks for the reply.
                    yea the ribbon sucks, replaced it with individual wires, but i have to tweak this a bit, rn there is to much crosstalk. will have to change some stuff, but im looking forward towards this.

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                    • dc42undefined
                      dc42 administrators
                      last edited by

                      @superbrain8 does the ribbon cable carry motor wires as well as the endstop wires?

                      Duet WiFi hardware designer and firmware engineer
                      Please do not ask me for Duet support via PM or email, use the forum
                      http://www.escher3d.com, https://miscsolutions.wordpress.com

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                      • jay_s_ukundefined
                        jay_s_uk @dc42
                        last edited by

                        @dc42 yes it does

                        Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is

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                        • dc42undefined
                          dc42 administrators @jay_s_uk
                          last edited by

                          @jay_s_uk said in Unreliable Homing in one Axis:

                          @dc42 yes it does

                          Bad idea! Might possibly be workable if there are some ground conductors between the motor wires and the endstop wires.

                          Maybe he could split the ribbon cable between the motor conductors and the endstop conductors, then keep the two parts of the ribbon cable separate.

                          Duet WiFi hardware designer and firmware engineer
                          Please do not ask me for Duet support via PM or email, use the forum
                          http://www.escher3d.com, https://miscsolutions.wordpress.com

                          Superbrain8undefined 1 Reply Last reply Reply Quote 0
                          • Superbrain8undefined
                            Superbrain8 @dc42
                            last edited by

                            @dc42 will be a non issue for me in the future, im working on replacing the entire ribbon cable due to its limitations.
                            will run individual wires, just have to seperate them properly so they wont be close to stepper motor or other higher current wires.

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