Saint's Log

Intro to Geometric Dimensioning & Tolerancing

I have been learning a little bit about how things are made. One of the important concepts that is emphasized is GD&T. Here are the YouTube videos I found explaining what it is and why it is important.

The next playlist was particularly interesting to me because of the discussion in one of the videos about how mechanical engineers often graduate without a basic knowledge of GD&T, which can set them back when they get into the industry.

GD&T Rule #1: Envelope Principle | GD&T Basics (gdandtbasics.com) is mentioned as a key concept in these videos. Here’s another explanation of the envelope principle: Rule #1 in GD&T for Size Tolerance – YouTube.