Angularity of 2 Surfaces to a Datum which is a Radius

F

fabiolag

#1
I came across a customer drawing that calls out the angularity of 2 surfaces to a datum. The datum is pointing to a radius. The part is an arc with an OR and an IR. The sides of the arc are supposed to form a 75? angle (basic dimension). Both sides of the arc have an angularity callout of .002 to datum A. Datum A is the IR. How would this be inspected? What are they trying to achieve?
 
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F

fabiolag

#3
Here is a quick sketch. The sides are where the angularity is being called out from The angle of the 2 sides is a basic dimension of 75?

angularity.png
 
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