Specification of 12 X True Postion
Specification of 12 X True Postion
(OP)
The inspection report shows the specification requirement:
Feature: Position
Specification: 12 X .125 +.002/.000 [(TruPos symbol) dia.002 (M) | A | B ]
When I perform the CMM measurement, I am not sure about the requirement of this callout:
All three holes (callout is actually a True position of the PCD of all holes)?
or individual hole True Position?
And could it be the same thing?
Thanks for the help!
Feature: Position
Specification: 12 X .125 +.002/.000 [(TruPos symbol) dia.002 (M) | A | B ]
When I perform the CMM measurement, I am not sure about the requirement of this callout:
All three holes (callout is actually a True position of the PCD of all holes)?
or individual hole True Position?
And could it be the same thing?
Thanks for the help!





RE: Specification of 12 X True Postion
I am not sure what you mean by "all three holes" or "PCD".
The CMM report would show the XYZ nominal values, the actual values and the deviation amount.
The Inspection Report could be filled out by attaching the CMM report or, showing the range of all 12 ea of the holes, I.E.: TP DIA. .002 checks .0015 to .0019
Harold G. Morgan
CATIA, QA, CNC & CMM Programmer
RE: Specification of 12 X True Postion
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The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows.
RE: Specification of 12 X True Postion
What I mean by PCD is Pitch Circle Diameter.
12 X, that is a lot of measurement!