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Recent content by ray99

  1. ray99

    datums

    Thanks again all, re: the c'bored holes, it's all there in y14.5 isn't it? I don't know how I overlooked it. Thanks.
  2. ray99

    datums

    Thanks everyone, As I suspected, good common sense advice. So it seems there is no written standard regarding this. I happen to have one more two-part question (not related to the datum question above), perhaps better put in a new thread, but here it is: 1) There is a counter-bored hole with a...
  3. ray99

    datums

    Hello all (my first post) Perhaps an elementary question, but here is is: In a multi-detail drawing (tooling), can you reuse the same datum letters (A,B,C,..) on the different parts? Or do you have to continue with the next letters in sequence (D,E,F,..) for the other parts. Incidentally each...

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