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What is the proper way to dimension these features that are in-line with each other?

Question asked by Brian Stoddard on Feb 24, 2020
Latest reply on Feb 24, 2020 by Matt Juric

I have a part that has these two features shown in-line with each other.  There is a tab on the side of the part and a recess on the top of the part.  It allows a bracket to snap onto the part using both the tab and the recess. Due to it being a drafted part and changes in elevation, etc, obviously the sizes of both features won't be the same size.  In the past, I've dimensioned to the center of the features.  I've read in other places that this is not the correct way to dimension, that you shouldn't dimension to the center of a feature.  I know dimensioning depends a lot on what the purpose of the feature is.


In the picture below, what dimension or dimensions should be used to dimension these features?  I would have used the 1.500 dimension to locate the in-line features and the .492 dim to specify the width of the tab and .440 for the recess width.  Thoughts??