GD&T Articles

by Brandon John on October 20, 2020.

There are many great reasons why engineers & designers benefit from knowledge of Geometric Dimensioning & Tolerancing (GD&T). But today, we want to share with you just one reason that is particularly interesting. Even though GD&T is simply a method of communicating inspection criteria & dimensional specifications on 2D drawings, learning to use it can…

by Seth Elder on October 12, 2020.

In this article, we explain the differences between bilateral, unilateral, and unequally disposed tolerances. What is a Tolerance? Tolerances on technical drawings communicate the amount of variation permitted from a target dimension.  The allowable variation can be visualized as a zone surrounding the ideal surface of the part – what is called “true profile.”  For…

by Saif Afridi on October 7, 2020.

The importance of Geometric Dimensioning & Tolerancing (GD&T) has increased exponentially since its introduction to the workplace in the 1950s. It has grown to become a universally accepted system that is used by professionals in the production/engineering industry for technical drawings.   From the very first stage of designing a product to the very last of quality assurance, GD&T has a role at each step of the production cycle. For this very reason, a significant number of employers expect their employees to have relevant knowledge of Geometric Dimensioning & Tolerancing.   The question then is: how would you, someone who is…

by Crystal Bemis on October 1, 2020.

What is the difference between the ISO and ASME GD&T standards? Read on to find the answers to these questions and more… There are many standards that define requirements for GD&T. The two most popular are published by ASME (American Society of Mechanical Engineers) and ISO (International Organization for Standardization). These two systems have many similarities…

by Saif Afridi on September 28, 2020.

Engineer Essentials, owner of GD&T Basics, has launched the Engineering Drawing Basics course for all those eager to upskill themselves or brush up on their basics. See what one of our learners has to say about this course…. “If you cannot interpret an engineering drawing, there is no place for you in a professional engineering…