There is a common misconception that, in order to inspect a part using a 3D scanner, reverse engineering is required. But this is not the case. An automated 3D scanner such as a ShapeGrabber makes the inspection process fast and simple. There is no need to reverse-engineer a 3D-model because the inspection software uses the output of the scanner directly.
This generates a “point cloud”—an exact representation of the entire surface area of the scanned part. This point cloud data file is easily imported into the inspection software included with the ShapeGrabber system (Geomagic® Qualify or Polyworks® Inspector). This data can be quickly compared to a reference file, such as a CAD model or the scan of a known good part, or measurements can be extracted directly from the scan data.
An inspection report is then automatically generated—with visual and numerical data—and can be saved or printed. The report quantifies the deviation of the part’s actual shape from the specifications, using GD&T analysis, error maps, tabular measurement, cross-sectional analysis, and more.