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Thread: Two control boards for 4th axis.

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  1. 08-23-2012, 12:51 PM #1
    TeraNami
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    Question Two control boards for 4th axis.

    Hi. I am trying to add a 4th axis (nema 17) to a pcnc 770, which will to be used for a 3d printer attachment on the side of the z-axis. I was wondering if I could use a separate control board (using USB) to work in unison with the existing xyz-axis in Mach3? I am using the parallel port for the cnc. Thank You
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  2. 08-23-2012, 02:38 PM #2
    ger21
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    No, use can't use the USB port, but you can add a second parallel port. I don't know if the Tormach version of Mach3 will support it, though.
    Gerry

    UCCNC 2017 Screenset
    http://www.thecncwoodworker.com/2017.html

    Mach3 2010 Screenset
    http://www.thecncwoodworker.com/2010.html

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    http://www.g-forcecnc.com/jointcam.html

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)
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  3. 08-23-2012, 03:15 PM #3
    nicad
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    The 770 is "pre-wired" for a 4th axis. If you are currently only using 3 axis, you have one more axis available to you before you have to start adding ports. Look into the Tormach documentation for adding a 4th axis (rotary table) for wiring diagrams, etc. You would then control it via the "A" axis in Mach.

    Hope this helps-
    Colin
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