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  1. jokes60123

    GD&T true position of duplicate hole patterns relative to each other

    pmarc, Thanks for the advice. I will have to go track down our corporate copy of the standard to review your references. I can however tell that my drawing is not clearly communicating the intent which is the reason for my trying to redefine the dimensioning structure on the part. I have...
  2. jokes60123

    GD&T true position of duplicate hole patterns relative to each other

    Thanks for all the advice. I think I've gotten part / most of the way there, but inverted the mentality by keeping the 4 hole pattern tighter then using a 4 places call out with the composite call outs below. Attached is a revised copy. The question I have left is should I be using a...
  3. jokes60123

    GD&T true position of duplicate hole patterns relative to each other

    pmarc - Good point. Sorry should have indicated hierarchy. The 4 hole pattern to itself is most critical. To attach a number to it, call it .006" The 16 hole pattern relative to the center hole in the part is the second most critical characteristic. But is not as critical as the first...
  4. jokes60123

    GD&T true position of duplicate hole patterns relative to each other

    Hi all, Thanks for reading this. I've attached a mark up to explain the general concept I'm having issue with. Effectively I've got a hole pattern, that repeats around a part. I've used a cross with a 4 hole pattern for this. I've created basic datums to give part orientation, but am...

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