One year ago, something unexpected happened.

A single GD&T post sparked thousands of comments in just a few hours. The message was clear: engineers were hungry for practical, high-quality GD&T knowledge.

Over the past year, we’ve seen photos of the poster hanging in machine shops and offices across nearly every continent. We’ve walked into engineering teams using printed desk mats for quick reference. And we’ve watched thousands of engineers use Drafter resources to help make better engineering decisions.

During that time, we’ve also received a huge amount of feedback; from small terminology tweaks to bigger ideas about how we can make GD&T education more practical and usable in real workflows.

So we made an update.

The newest version of the GD&T Cheatsheet reflects what we’ve learned from the community, and yes, circularity is now included.

Thank you to everyone who has sent feedback, corrections, and encouragement. And a special thank you to Andy Thompson, P.E., for the kind of detail-oriented feedback that makes resources like this better for everyone.

A lot of you have asked some version of:

So we finally did it.

It’s a single page with everything we’ve built so far:

No scavenger hunt.

Just the good stuff, organized.

Bookmark it. Share it. Send it to the coworker who keeps dimensioning to edges.

As always, if there’s something you want us to explain, build, or tear apart (politely): email us here.

Cheers,

The Drafter Team