In this Question Line video, Jake demonstrates how to define radial patterns as datums, with guidance from ASME Y14.5.
Jason explains how multiple features can be used to create a single datum on a part and why it’s done.
In this Question Line video, Jason explains the difference between the related and unrelated actual mating envelope and walks through an example drawing to explain when and how they are used to inspect a feature.
Jason reviews the effects of tight position controls on features that relate to datum features with much larger form tolerances.
In this Question Line video, Jason discusses size dimensions to avoid with stepped surfaces and how datums and profile eliminate ambiguous dimensioning.
Jason discusses how to select the appropriate datum feature when designing a hollow cylindrical part where both the ID and OD are mating features.
In this Question Line Video, Jason uses the example of a cylindrical datum feature to show how non-planar datums can be simulated and how they are able to constrain degrees of freedom.
This video is in response to a question that we received on our question line from Ignacio. Ignacio asked us if it is a bad practice to reference three datums in a single drawing callout...