Modeling of Complex and Freeform Surfaces by using Reverse Engineering Approach

Reverse Engineering is extensively used technology by both research and industries for rapid development of product.In Reverse engineering with the help of already, existing product a new product is developed.To develop a new product CAD model is necessary.For this purpose already existing object is scanned using CMM machine, laser scanner etc.Output of Scanner is Point cloud data.It is big challenge to get CAD model from point cloud data.Various techniques called segmentation technique are available to convert point cloud in to surface or solid geometry.This paper reviews the reverse engineering and various segmentation techniques from the literature.Case study carried out to convert point cloud data in to CAD model by using FreeCAD Software.