Ok I need to know what others have done in the past.

I have a part that has a counterbore from a face. The counterbore diameter is 114mm and the depth is only 5mm. Print callout has cylindricity on it of 0.25. The interesting part is the also happens to be the A datum. B datum is the face the counterbore goes into and that has a flatness of 0.25 as well as a perpendicularity of 0.25. The opposite side has a similar face and counterbore, but this bore has 32mm of length and the callout is 0.25 runout to datum A. On each face there are bolt hole patterns and one of them has a TP callout as well of 0.25 to A and B.

Question is has anyone had this before?

How sound will the cylinder be with so little length and it being a datum.?

I do not have parts yet so I am just prepping in advance to make sure I can get the best results.

Any suggestions are welcome as to what tip is best to use etc.

Thanks in advance for all the help.

I have a part that has a counterbore from a face. The counterbore diameter is 114mm and the depth is only 5mm. Print callout has cylindricity on it of 0.25. The interesting part is the also happens to be the A datum. B datum is the face the counterbore goes into and that has a flatness of 0.25 as well as a perpendicularity of 0.25. The opposite side has a similar face and counterbore, but this bore has 32mm of length and the callout is 0.25 runout to datum A. On each face there are bolt hole patterns and one of them has a TP callout as well of 0.25 to A and B.

Question is has anyone had this before?

How sound will the cylinder be with so little length and it being a datum.?

I do not have parts yet so I am just prepping in advance to make sure I can get the best results.

Any suggestions are welcome as to what tip is best to use etc.

Thanks in advance for all the help.

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