The GD&T Blog

Many of you may know that GD&T has been around for a long time (see an earlier blog entry about the history of this system). And like anything else that’s been around for a while, things sometimes change.
The current American national standard for GD&T is maintained by the American Society of Mechanical Engineers (standard number Y14.5M-1994). […]

For those of you who actively use GD&T on a daily basis, you should be aware of the certification process for GD&T Professionals.

The American Society of Mechanical Engineers (ASME) has established a credential for GD&T proficiency, called GDTP, which stands for “Geometric Dimensioning and Tolerancing Professional.”
It is a testing process that measures your ability […]