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  1. #1

    Wiring for filament detector

    Hello all

    I just cannot find the wiring diagram (that I can trust) for the filament detection connection.

    I believe it plugs into X Min. Its a 4 pin socket, but does anyone know the connections, so that I can add my own microswitch?

    The cables plugged in are red, black, green and black again.

    Red is +5v, 2 centre pins linked as 0V? and the bottom pin maybe the signal?

    Signal is held high with a 10k (using NC), and then taken low with a NO? That is what I thought the connections were, but reverse engineering one of the other limit switches... that doesn't look to be the case.

    Any help greatly received.

  2. #2
    Super Moderator curious aardvark's Avatar
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    Jul 2014
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    8,818
    what board/priter are you using.

    I did notice that the mks robin board on my sapphire pro has a specific socket for the filament run out sensor (I didn't bother using it).
    That just uses a standard endstop with the two wires.

    I suppose it depends if you are using a filament sensor that registers movement or one that just checks to see if the switch is closed.

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