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how do I program in a new bit size ( Tapered Ball Nose - 4.8 Deg Tip 0.5, 6.35 mm

Discussion in 'General Talk' started by Brad Guest, Sep 14, 2021.

  1. Brad Guest

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    How do I program in a new bit size ( Tapered Ball Nose - 4.8 Deg Tip 0.5, 6.35 mm for example ) into the Openbuilds Touch Interface ? I need to add bit sizes to the probe file in the interface that runs the XYZ probe .
     
  2. Alex Chambers

    Alex Chambers Master
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    You can't probe X or Y with a tapered bit. The probe software will expect the X and Y probing to be done with a parallel bit. In fact it's best to probe X and Y with an accurate rod rather than a bit and then probe Z with the bit you are going to use.
    Can't help you with the specifics of setting up that probe software though I'm afraid, as I don't use it.
    Someone else is bound to chip in with that explanation soon.
    Alex.
     
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  3. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

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    Interface only supports standard bits, because tapers are not a viable option (you cannot get an accurate probe against a surface that is not parallel/perpendicular to the motion axes). As mentioned, probe XY with a dowel pin, regular endmill, etc - then insert the taperered bit, and probe Z only. That is the best procedure
     
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  4. Brad Guest

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    Thank you, that is very helpful
     
  5. Brad Guest

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    Thank you , It can't get any easier than that
     
  6. Wick

    Wick New
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    Thank you for this explanation. I used a 6.2 degree tapered ball nose (1/32) as that last bit for a pocket of a small star and it was off about .2 mm or so. Now it is right on.
     
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