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Author: Brandon John

Why use Profile over Coordinate Dimensioning

by Brandon John on August 16, 2021.

To determine when to use Profile of a Surface or Coordinate Dimensioning, let’s first look at what the 2009 ASME Y14.5 Geometric Dimensioning and Tolerancing Standard tells us.  Paragraph 2.1.1 was revised to emphasize/encourage the...

Circularity – The Tolerance Zone

by Brandon John on June 22, 2021.

There can be a lot of confusion when dealing with circularity – especially when identifying the tolerance zone compared to how Rule #1 of Geometric Dimensioning and Tolerancing controls it.  In this video, we provide...

Basic Dimensions and How to Report

by Brandon John on January 27, 2021.

In this video, Brandon discusses basic dimensions and why they should not be recorded on an inspection report. What Are Basic Dimensions? Basic dimensions are used in Geometric Dimensioning and Tolerancing to describe the theoretically...

How Does 1st Angle Projection Work?

by Brandon John on January 19, 2021.

This post is in response to a question that we received on our question line from Gilroy. Gilroy asked us about the drawing projection method in an example problem that was a part of our...

Profile Deviation Reporting

by Brandon John on January 13, 2021.

This video is in response to a question that we received on our question line from Brandon.   The question is as follows: “I have profile tolerance on a flat surface of 0.2 mm with respect...

ASME GD&T Exam Certification

by Brandon John on December 15, 2020.

Some of the most common questions that we receive at GD&T Basics is regarding the ASME GDTP Certification Exams. (Yes, you can become a certified GD&T expert!) Read on to learn more about the different...