Tag: derived median line straightness

When to use DML Straightness

by Crystal Bemis on July 23, 2024.

In this Question Line video, Brandon walks through examples for both surface straightness and derived median line straightness, explaining how to correctly apply them and discussing design and inspection considerations.

Rule #1 and Derived Median Line Straightness

by Crystal Bemis on May 30, 2023.

"Why doesn’t Rule #1 apply to the straightness of a Derived Median Line?" In this article, we look at both surface straightness and straightness of a feature of size to understand why Derived Median Line Straightness overrules Rule #1 of GD&T.