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Tag: Profile of a Surface

Tolerances for Fillets and Rounds

by Crystal Bemis on January 27, 2025.

In this Question Line video, Jason discusses applying tolerances to fillets and rounds, explaining why applying profile of a surface allows more direct control of the size and form than using +/- tolerances.

Profile of a Surface with No Datums

by Crystal Bemis on January 6, 2025.

In this Question Line video, Jason walks through a few examples to show us the difference between profile of a surface with and without datums referenced in the feature control frame and how that affects the reported deviation.

Profile Unequal Zone

by Crystal Bemis on December 9, 2024.

In this Question Line video, Jason discusses the ISO Unequal Zone (UZ) modifier, which is similar to the Unequally Disposed modifier of the ASME standard. He walks through an example where the UZ modifier is included in a feature control frame controlling profile of a surface and discusses how this impacts the tolerance zone.

Size Dimensions to Avoid

by Crystal Bemis on September 30, 2024.

In this Question Line video, Jason explains why the 2018 revision of ASME Y14.5 does not permit locating the distance between stepped surfaces with a size dimension. He also explains how utilizing datums and profile eliminates that ambiguous dimension from being applied and how to report that measurement to get the most direct tolerance between the stepped surfaces.

Profile Inspection: Vectors in CMM Measurement

by Crystal Bemis on March 4, 2024.

Coordinate Measuring Machines (CMMs) are essential tools for obtaining precise measurements. However, to ensure accurate measurements, it is crucial to understand how to use them correctly. In this video, Jason explains the importance of recognizing and utilizing appropriate vectors when inspecting a profile or irregular surface with a CMM probe.

Control on Multiple Profiles

by Crystal Bemis on July 7, 2023.

Is it possible to control multiple identical profiles by including a multiplier with the feature control frame? In the video below, Jason reviews a drawing with 2 irregularly shaped identical cutouts to answer this question.

Profile of a Surface

by GD&T Basics on December 18, 2014.

Profile of a surface describes a 3-Dimensional tolerance zone around a surface, usually which is an advanced curve or shape...