Scan to CAD Comparison

3D scan data can be compared to a CAD model to dimensionally inspect the features like color maps using any type of alignment like best-fit, datum based and feature-based. The 3D scanners and 3D inspection software help us to get a fully parametric CAD model. But we need to check to make sure our model is accurate to the scan, or the design intent assumptions to the specifications. For this process, we need to completely scan the geometry. We import that 3D scanned data (STL or OBJ formats) into the inspection software to create different geometric entities. Now, a parametric solid model is created. We need to check our CAD model is accurate to the original geometry. So, we import the reference model again and use a command called "3D compare" to get a color map and deviation information comparing our CAD model to our original scan. We can use the "Enhanced alignment accuracy" feature to get analysis between two data and the maximum accuracy comparison between 3D scan data to the CAD model.