Approach of reverse engineering that uses appropriate tools to capture 3D geometry data and dedicated software to manipulate and interpret it into useful information. The reverse engineering process can be divided into two basic steps: measurement and further processing. Measurements are performed using appropriate measurement systems; the accuracy and density of the data together with the characteristics of the object to be scanned and the properties of the surface are generally the parameters to be considered in order to choose the appropriate system to adopt. In this situation, this process was used to create the virtual model of the instruments. Image acquisition techniques and systems were integrated with image analysis methods. The collected data sets were then managed using dedicated software and procedures. Computer-Aided Design (CAD) systems and methodologies were adopted and implemented to define mathematical representations to reconstruct the geometry of the instrument. Thus, the measurement phase consists of data collection, while the processing phase led to the interpretation of the measurements into meaningful information.