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    Filament monitor port must be on same board as extruder driver?

    Duet Hardware and wiring
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    • dhouck
      dhouck last edited by

      I am converting my printer from Duet 2 Wifi to a Duet 3 Mini 5+ with a Toolboard v1.1. I have everything working except my filament sensor.
      In my config.g, I have :

      M591 P2 C"0.io5" D0 S1
      

      I have a reverse Bowden with a direct drive extruder. So I want the filament on the reverse Bowden, connected to the Duet 3 Mini 5+, not the Toolboard.

      However, when I run the M591, I get:

      Filament monitor port must be on same board as extruder driver
      

      I can't be the only one who has this type of setup. Are there any work arounds?

      Thanks in advance.

      T3P3Tony 1 Reply Last reply Reply Quote 0
      • T3P3Tony
        T3P3Tony administrators @dhouck last edited by

        @dhouck This is a specified limitation:

        https://duet3d.dozuki.com/Wiki/Duet_3_firmware_configuration_limitations

        Which makes sense for "monitors" that measure movement but we may remove this in a future version for "sensors" that are simple switches.

        In the mean time you can use the trigger system to trigger a pause with the switch:
        https://duet3d.dozuki.com/Wiki/M581

        www.duet3d.com

        dhouck 1 Reply Last reply Reply Quote 0
        • dhouck
          dhouck @T3P3Tony last edited by

          @t3p3tony I understand this is working as designed... I just think it is an arbitrary, wrong, limitation.

          T3P3Tony 1 Reply Last reply Reply Quote 0
          • T3P3Tony
            T3P3Tony administrators @dhouck last edited by

            @dhouck For a filament monitor that measures filament movement we want to do that on the same board as the extruder driver - I think that is a sensible limitation as that processor has the information about the extruder position at any point in time.

            For a simple switch based filament sensor I agree that this limitation could be relaxed and we plan to do so in the future.

            www.duet3d.com

            nick9one1 1 Reply Last reply Reply Quote 0
            • nick9one1
              nick9one1 @T3P3Tony last edited by

              @t3p3tony

              I've just come across the same problem after adding the tool board 😞

              PCR 1 Reply Last reply Reply Quote 0
              • PCR
                PCR @nick9one1 last edited by

                @nick9one1 switch or filament measuring?

                1 Reply Last reply Reply Quote 0
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