Reverse engineering is the method that recreates the design of an existed component. The original component is either 3D scanned or measured with traditional metrology methods and then a CAD engineer creates-designs from scratch a new CAD model. CAD files are 3D models that are used for manufacturing.
When do we use reverse engineering?
Discounted components from the original manufacturer. Especially useful in the classic automotive sector.
Altering existing components in order to fit our needs.
Integrated a component in our assembly CAD environment.