So I've been following along with interest. Going back to my original question. Since datums are referenced in the profile tolerance, the outer profile zone isn't applicable on the datum edges, correct? So doesn't this effectively result in a +/-0.05 tolerance for my part?
Agree that B&C datums aren't needed for this view, but they are used for the bottom side of the part to control ball grid array locations relative to package edge.
What we ended up doing was leaving datums in place for BGA location, but changing the package size dimensions to 4.9 +/-0.05 and...
Hi,
So hoping some experts can help me put a question to bed. I work in the electronics industry, so really don't need to use GD&T at all. However, our data sheet drawing has this call out, and it's been the source of much debate with some customers. I've attached a picture of how I...
