Your Source for GD&T Training
Based on The GD&T Hierarchy

Tec-Ease, Inc. provides the most comprehensive GD&T training and coaching in the industry. Our GD&T courses are designed to keep the participant interested and engaged, while having fun.

Your Source for GD&T Software
and Computer Based Training

Tec-Ease, Inc. software packages are designed to help train and offer continued support to companies and employees in the industrial manufacturing field.

We offer On-Site Courses,
Public Seminars,
Webinars and Computer Based Training.

When Inspecting Flatness, There Is No Datum (#180)

(In accordance with Y14.5M-1994 standard)

PDF is Available with GD&T Reference Center Subscription.

Flatness is another geometric tolerance that is challenging to inspect. It requires isolating the feature from the rest of the part since there can never be a datum referenced with flatness. In this example, the flatness has been applied to datum feature A. Three possible inspection methods are illustrated. In all cases, the considered feature is …

Max the Tec-Ease mascot
Back to Tips Tip added Jan 2005