Approach to Optimize STL Model for 3D Laser Machining

Through the introduction of the existing problems of texture mapping process for laser machining of 3D surface, the necessity of STL model optimization is described, and re-sampling algorithm of optimization has been roughly divided into the following three steps: re-sampling point calculation, triangular patch re-sampling and mesh vertex deletion. The practicability and feasibility of the approach to re-sample STL model has been verified. The algorithm can make most of STL models optimized and assure the accuracy of texture mapping for laser marking of 3D surface.