Common GD&T Student Questions: Perpendicular Datums from Imperfect Features
by Crystal Bemis on April 6, 2023.
How can datums be perfectly perpendicular to each other when the features themselves are likely imperfect? The feature axis and the datum axis derived from the feature are found in two different ways, using the Unrelated Actual Mating Envelope and the Related Actual Mating Envelope.