This is a task I need to do very often and it takes too much time.
The task with more details; I get a STEP model extracted from either CATIA or an other solid modeler with all the details including internal details. What I need to work with is a light 3D model including only the outermost surfaces for layout purposes. So every time I receive one of those, it is a long and tedious process of selecting the required geometry.
Is there a tool, a set of tools, a method or some trick to help perform this task?