08/26/2026
A 3D scanner gives you millions of points. It doesn't give you a reliable GD&T result on its own.
That comes from the decisions you make between the point cloud and the report. The alignment strategy. The feature extraction. The uncertainty you're willing to state honestly. Get those right and scan-based GD&T rivals a CMM while covering far more of the part. Get them wrong and you'll produce confident numbers that are quietly incorrect.
We put together a full practical guide on how to do it right, callout by callout.