Board is also known as the first board, which is usually only needed for developing or designing products. The manual board of directors is the first step to verify the feasibility of products. It is the most direct and effective way to find out the defects and deficiencies of the designed products, so as to improve the defect target until the board sample can not be found from the personal hands. At this point, a small amount of pilot production usually needs to find out what is not enough to improve the batch.

　　根据生产中使用的材料，手板可分为塑料手板、硅胶手板、金属手板、油泥手板。塑料手板:其原料为塑料，主要是一些塑料制品的手板，如电视机、显示器、电话机等。塑料手板设计材料有ABS、PC、PMMA、PU等。ABS是更常用的手板设计材料;PC、PMMA为生产透明零件;PU用于生产小批量硅胶模具产品。ABS是机加工成块状，密度比注塑ABS低，加工后内部分子链被切断和断裂。因此，ABS制的手板强度低，容易断裂。不能用于销售的产品。

　　According to the materials used in production, the hand board can be divided into plastic hand board, silica gel hand board, metal hand board and oil mud hand board. Plastic hand board: its raw material is plastic, mainly some plastic products, such as television, display, telephone, etc. The design materials of plastic hand board include ABS, PC, PMMA, PU, etc. ABS is the most commonly used design material for handboards; PC and PMMA are transparent parts; Pu is used to produce small batch of silica gel mold products. ABS is machined into blocks, the density of ABS is lower than that of injection molding. After processing, the internal molecular chain is cut and broken. Therefore, the hand board made of ABS has low strength and is easy to break. Products that cannot be used for sale.

　　塑料手板的设计工艺是数控加工和硅胶模具。另一种是激光快速成型，非常快。但由于其成品精度差，表面质量不使用。CNC是数控铣削加工。该工具与普通加工没有区别。区别在于铣削材料有ABS、PC、PMMA等材料。三维数据通过数控处理软件编程。输出到数控机床的订单可以加工出我们需要的半成品。半成品经抛光、喷漆、电镀等工序加工而成。相当于正式产品。是显示和验证外观手板和功能手板的方式。

　　The design technology of plastic hand board is numerical control processing and silica gel mold. The other is laser rapid prototyping, very fast. However, due to the poor accuracy of the finished product, the surface quality is not recommended. CNC is CNC milling. There is no difference between this tool and ordinary machining. The difference is that milling materials include ABS, PC, PMMA and other materials. Three dimensional data is programmed by numerical control processing software. Orders output to CNC machine tools can process the semi-finished products we need. Semi finished products are processed by polishing, painting, electroplating and other processes. Equivalent to a formal product. It is the best way to display and verify the appearance and function hand boards.