“…In order to automatize this procedure, several CAD systems are including automatic and semi-automatic defeaturing methods to reduce the complexity of the CAD model, and then export it as a mesh. Defeaturing is related to CAD model simplification by detecting and processing features, and is dependent on the CAD system model representation (e.g., constructive solid geometry, B-Rep [100,101,102], feature-based [103,104,105], etc.). Since there exists a vast amount of feature classes without a universal definition [106], feature detection is not a trivial task.…”