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Bad GD&T prints

Calvin.Korver
Link to print https://drive.google.com/file/d/1PPWkIpGwM39PPnNyxP7Zwe0Rr7QkaRxh/view?usp=sharing

Only sharing part of the print for nondisclosure purposes, but there was a lot wrong with it. Thought I would share this since it has been so annoying for me.

They put a position dimention on many of the faces when they clearly needed/wanted a surface profile.
They also had an M modifier on almost everything including: datums that are planes, flatness, and one distance dimension

Currently talking with my contact to see if we can get this straightened out.

Anyone else deal with some bad GD&T?
Parents
  • Follow-up Post: I talked with the engineer and he thinks they do actually want the position dimension of the plain, even though I'm not convinced. I double-checked the print and it is to the ASME Y14.5-2009 standard. I don't think it gets any good data and I have been running the part and it says the planes are in the wrong spot along the plain getting numbers all over the place. Can someone give me a good resource as to what the true position of a plain is really measuring? Or what do tell the engineer bc I think you can only have this type of callout in some ISO standard.
    These parts are also getting a coating so I have added that to the tolerance already. I know that could be affecting the results, but the results still say its WAY out.


Reply
  • Follow-up Post: I talked with the engineer and he thinks they do actually want the position dimension of the plain, even though I'm not convinced. I double-checked the print and it is to the ASME Y14.5-2009 standard. I don't think it gets any good data and I have been running the part and it says the planes are in the wrong spot along the plain getting numbers all over the place. Can someone give me a good resource as to what the true position of a plain is really measuring? Or what do tell the engineer bc I think you can only have this type of callout in some ISO standard.
    These parts are also getting a coating so I have added that to the tolerance already. I know that could be affecting the results, but the results still say its WAY out.


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