The models’ research and development are based on the customer’s appearance ID requirements and PCB interface location, interface package, installation method, cooling methods, etc., design 3D mold graphics, 3D model design after the completion of the output Stp file and structure DXF file, Stp file for the production of CNC Hand board, structured DXF file for PCB design. After the PCBA sample is completed and the CNC sample assembly verification is completed, the new model is done.