Uploaded January 2026 | Updated September 2026, 2 weeks ago

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Designing a perfect CAD model is easy. Getting real parts that actually assemble the way you planned is harder.

In this Proto Tech Tip episode you’ll see how GD&T:

• Focuses on critical functional features instead of “perfect geometry”
• Links design, manufacturing and inspection through datums and feature control frames
• Often gives you more usable tolerance than traditional coordinate dimensioning

👉🏻 Watch the full Proto Tech Tip to learn about datums, feature control frames and tolerance symbols in detail, plus what’s changed in the 2018 standard.

🔔 Subscribe to our channel for upcoming GD&T episodes on form, profile, orientation, location and runout.

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