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profile four surfaces

Profile callout to four times (surfaces) ... do we create ONE primary plane from the four surfaces. THEN four separate planes to tolerance the profile four times?  (from the primary plane)






                                 

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  • It's really ambiguous.  Is it 4x profile reports? I presume the answer is no, as there's no x after the 4 in the "4 SURFACES AFTER ASSEMBLY" note

    I think they added the note "4 SURFACES AFTER ASSEMBLY", to clarify that the profile applies as one measured result of four previously independent features of size, that have now been assembled into one plane with four connected planar segments.  

    So yeah, get clarification in writing from a QE or other individual with CDA (Controlling Design Authority) on how to measure it... But methinks it's 1x profile of the 4x assembled planes after they have been tied together.

  • I will add.... if I create a plane using all four surfaces, don't I need a basic dimension?  No PDD document is noted on this drwg. If I tell the CMM that the 'created plane' is zero.... well my profile will be zero...? What am I missing here. Sry, friday brain fog.  

  • Its calling a profile with no datums, therefor it will rely on the min/max variation within your feature set as it relates to the nominal locations on the model to report out its profile value. 
    Select all your points on the four surfaces and create a feature set, then report the profile of that set.

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