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Recent content by Luke76

  1. Luke76

    Datum Planes

    I think that I have just a little confusion because I have never understood what a datum plane rappresents. Are they determinated by the function or by the inspection method? Which datum planes (secondary and thirtiary) I can use if I have a surface with only a little flatness face? in...
  2. Luke76

    Datum Planes

    Thanks to everyone! Last week I started to study the ASME Y14.5.M-19 and, with the help of this forum, I have understood the main issue. Now, when I have a drawing with three datum planes it’s clear the meaning but, when I have a different drawing it’s not clear the meaning for me….. Can I...
  3. Luke76

    Datum Planes

    Hello to everyone! I apologize for the question....but I have never understood this issue If I have a flatness surface (datum A) e the I use two holes for Datum B and Datum C, which mutually normal planes I must consider? Could you help me, please? Thanks in advance Luke
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