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Discussion in 'CNC Mills/Routers' started by opus633, Jan 19, 2018.

  1. opus633

    opus633 New
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    I recently asked about an arduino based system but my computer also has the proper port for another system. Am I right in assuming that if I use the port the arduino and its shield is useless? I am guessing that in this case the drivers are driven directly from the PC. Which is better (I will at some point in the future want a 4th axis.

    thanks
     
  2. Kevon Ritter

    Kevon Ritter Master
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    When you say "another system," what do you mean?

    Your computer doesn't control the machine. The "controller" does. Your computer only communicates with the controller. The controller tells the (stepper) drivers what to do.

    The Arduino would be the controller.

    (I'm honestly not sure of what your question is.)
     
  3. opus633

    opus633 New
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    Well my question is what are the benefits and downfalls of using the parallel port versus the USB port.
     
  4. Joe Santarsiero

    Joe Santarsiero OB addict
    Staff Member Moderator Builder

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