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  1. AlexFH

    Datum Reference

    Thank you all for in-depth and helpful answers. It seems that UF is what I have been looking for and have been using CZ when I really should have been using UF. I will look more in to this. I came across another use of UF that confuses me a bit. As stated in para. 3.9 in ISO 1101:2017 Note 2...
  2. AlexFH

    Datum Reference

    Yes, I have access to ISO 5459, could you point me to the paragraph in the standard where I can read about this? Could potentially end up with a pretty nasty(in my mind) tolerance box, like |A-A|B-B|C-C|, but I guess that how it should be. Out of curiosity, how is this done different in the...
  3. AlexFH

    Datum Reference

    Hi, In this case, Datum B is a group of four faces. Should I use B or B-B? I have always used B in cases where I use the CZ modifier, and in my mind B-B should not be necessary to use since the four surfaces shall be interpreted as one surface already. But recently one of my colleague attended...

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