Subsequently, the reproduction process uses these points to extrapolate the shape of the object to a software, which integrates the general coordinates of the model into a common reference system, resulting in a process known as alignment. Depending on the complexity of the scanned object, its distance and the amount of detail that you want to extract from the surface, the 3D scan must be repeated, applying readings in different directions.
Next, a geometric approximation of the point cloud is sought in order to eliminate redundancies in the area of overlap between the surfaces, a process known as integration. From here, the 3D model in triangular mesh format, STL, is reconstructed.
Finally, through various software applications, the triangular mesh can be manipulated and, if necessary, converted into terms of IGES or STP format (the latter can also be identified with ISO 10303). Files to exchange CAD / CAM data.