UTILIZACIÓN DEL ESCANEADO 3D E INGENIERÍA INVERSA PARA EL PROTOTIPADO DE PIEZAS MECÁNICAS

Abstract

A 3D scanner permits to capture the shape and characteristics of any type of volume or environment and to build a three-dimensional model by the aid of a specific software. While each type of technology has its advantages and is used for various purposes, with all of them it is necessary to establish a reference system between the object and the scanner. The information obtained by the 3D scanner consists on a point cloud which is further processed in order to determine the way in which the points are joined and generate the model. This process is known as reconstruction. In order for a 3D scanner to be useful for many applications, its accuracy must be characterized. This requires a comparison between the model created from the scanner’s sensing and the scanned real object. Most experts agree the triangulation laser as the most accurate technology. In the present work a three-dimensional reconstruction of some mechanical pieces by using a scanner based on laser triangulation technology is performed. Subsequently, these reconstructions will be prototyped using a 3D printing machine in order to detect differences with respect to initial models.