How to Make a Drawing That Won’t Get Roasted in a Design Review

You know the drill—your part looks great in CAD, but the moment it hits the shop floor, the questions start flying.

Missing datums? Misused position callouts? A blind faith in “±0.005”? We’ve all been there.

That’s why we wrote the most thorough GD&T guide you’ll find online—clear explanations, real examples, and a full breakdown of how to use GD&T to communicate design intent exactly as you imagined it.

Here’s the TLDR of what you’ll learn:

• What GD&T really controls—and what it doesn’t

• How a 2-micron mistake almost ruined the Hubble Space Telescope

• Why SLOF (Size, Location, Orientation, Form) is your new best friend

• How to build a proper Datum Reference Frame (without overthinking it)

• A real-world example: From CAD to clean, manufacturable 2D drawing

We are hiring!

Also—we’re hiring! We’re on the lookout for a Computational Geometry Engineer and a Full Stack Engineer to join our small (but mighty) team. If you’re into hard problems, clean code, and nerding out over tolerances, we’d love to hear from you.

One more thing…

We’re building something new at Drafter—a smarter way to create 2D drawings directly from your CAD models in minutes, not hours. The waitlist is officially open, and early testers are already giving amazing feedback.

Happy engineering,

The Drafter Team