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XY Datum question

Discussion in 'General Talk' started by Robert-Lee, Jan 25, 2021.

  1. Robert-Lee

    Builder

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    Newbie here. Thanks in advance!
    While in the design mode, I always set my XY Datum at front left, top of material. When cutting, I always set my XY datum top left and again at the surface of the material. When would it be appropriate to cut a job and begin at the center XY datum position? I need to flatten a piece of 24” x 36” piece of stock. Would this be a situation where I began at center?
     
  2. Alex Chambers

    Alex Chambers Master
    Moderator Builder

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    Not necessarily - the datum point is not always where the toolpath starts, its a reference point so your controller knows where the workpiece is on your machine bed. One case I can think of where it might be advantageous to set the workplace zero on your machine and the origin in your cad/cam software in the centre of the job is when the workpiece doesn't have straight edges or clearly defined corners. A round piece of material would be a lot easier to set up that way, for example.
    Alex.
     
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  3. Robert-Lee

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    Makes perfect sense. Thanks Alex
     
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  4. Giarc

    Giarc OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

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    I will set mine in the center if I am adding an engraving to an object. I place the XY 0 point in the center of the engraving.
     
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