Beijing North Hengli Science and Technology Development Co., Ltd. by the Chinese Academy of weapons, weapons technology to promote China jointly founded the high-tech enterprises. Companies to promote the progress of the design and the traditional casting industry, accelerate scientific and technological achievements into the goal, the use of powerful technological advantages successfully developed a series of domestic initiative, high technology content, good market prospects of high-tech products, and the fastest speed products to market. In China, from the mid-1990s to the SLS technology research, in 2000 he developed the first localization of SLS rapid prototyping equipment and industrial transformation. Beijing North Hengli Science and Technology Development Co., Ltd. developed a variable line-scanning laser sintering rapid prototyping equipment; also successfully developed a spot scanning with dynamic focus function rapid prototyping systems, both rapid prototyping devices are stereotypes, and through the identification. The company also developed its own sintering excellent performance, strong adaptability casting wax casting and PS powder, also developed coated nylon powder, metal powder coating, resin sand molding material in a number of users. HLP-500 triplex laser sintering machine equipment use: Equipment use: HLP-500 laser rapid prototyping machine is a general-purpose device can be quickly converted into a three-dimensional digital models of physical models and parts. More powder can be sintered materials, such as engineering plastics (PS powder), casting wax, nylon powder, coated sand, coated metal powder. Its main purpose is: to design functional verification of new product development, testing parts manufacturing feasibility and can be assembled, especially trial production of particular parts of the complex and rapid reproduction of various economic mold, and further use of precision casting process the production of qualified casting. HLP-500 using triplex technology, feed cylinder is greater than 130L, an effective solution to the problem of inadequate feeding. Dusting process is characteristic three-cylinder machine, dusting roll from left to right as shown in FIG laser sintering layer begins, then right to left rear laser then re-sintered layer. Dusting roller can be sintered in a stroke twice. Therefore, three-cylinder engine is the sintering process: from left to right → → sintering; integral molding efficiency can be increased by more than 20%. Triplex double feed cylinder systems make the most of dusting powder produced during the remainder of the total energy collected in the feed tank, effectively reducing fees powder 20% -30%, with the exception of material molded parts with the material which can be again put into use; and fully address the impact of the flatness of the cylinder when the noodles traditional two-cylinder machine dusting axis return. 2.2 Host and console separation design, easy to operate and secure operation of the process.