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XYZ Touch Probe with V Bit

Discussion in 'General Talk' started by John Ford, Feb 2, 2021.

  1. John Ford

    John Ford New
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    If I want to use a V bit with this probe what do I set as the bit diameter? I am using a 60 degree V bit.
     
  2. ljvb

    ljvb Well-Known
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    You don't, you use it as a z probe only
     
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  3. sharmstr

    sharmstr OpenBuilds Team
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  4. ljvb

    ljvb Well-Known
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  5. Alex Chambers

    Alex Chambers Master
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    Use an accurately measured rod to probe X and Y whatever bit you are using. The flutes/cutting edges on a bit means you can't rely on getting an accurate probe on both X and Y. Then change to the bit and probe Z.
    Alex.
     
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  6. Giarc

    Giarc OpenBuilds Team
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  7. John Ford

    John Ford New
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    Thanks for the advice. I have decided to opt for a piece of 1/4 inch brass rod as I could not find any reasonably priced vermont gages in Australia - shipping from US was more expesive than the product!
     
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  8. Giarc

    Giarc OpenBuilds Team
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    That will work just fine. However, measure it with a caliper to be sure it is exactly 1/4 inch. If it isn't, use the value you measure and it will be as close to perfect as possible.
     
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  9. John Ford

    John Ford New
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    Okay. Thanks for the advice
     
  10. Brian Hagen

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    So my assumption is the probe is setting the zero point for x and y based on the middle of the 1/4 inch reference bit. If you set that and swap to the v-bit (and set the z axis accordingly), the point of v-bit should exactly hit the exact same point (where the middle of the 1/4 reference bit referenced earlier).
     
  11. Alex Chambers

    Alex Chambers Master
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    Yes, that is correct.
    Alex.
     
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