The Research on Improved Design and Drawing of Product Forms Based on Reverse Engineering Technology

摘要

In the analysis of the reverse engineering system model based on the reverse engineering system based on local surface reconstruction model based on existing measurement data directly to display 3D images and rapid prototyping, greatly reducing the time required for reverse engineering, eliminates the difficulties of a large number of complex surface modeling. In the study, the improved design of the form of product related to the free-form surface treatment, but the use of the product form the point cloud data to obtain a satisfactory surface reconstruction is difficult. NURBS surface fitting technique, the appearance of the product 1st be classified according to form and then accordingly the product shape reconstruction, it is much easier. Facts have proved that the conditions does not require high precision, the use of NURBS fitting to reconstruct the free surface able to obtain a satisfactory product form. This improved design of the product form is practical.