Shandong rapid prototyping personnel's analysis of the model, the grinding of the hand plate is an important process that the hand plate must go through in the manufacturing process. After the parts are processed on CNC machine tools, there will be many burrs and knife marks on their surfaces. During this period, the quality and effect of artificial polishing can be tested by some methods of ash spraying.

　　该模型的手版可分为形状和结构的磨削，这里济南手版为我们介绍了彩色表面加工要求的手版的外观。

　　The hand plate of the model can be divided into shape and structure grinding. Here Jinan hand plate introduces the appearance of the hand plate required by color surface processing.

　　普通手板，要求表面的处理与产品相似，这样才能彻底检查出外观的效果。在研磨时，要用很厚的砂纸把它稍微研磨一下。在进行详细的磨削之前，要先去除表面的粗边。

　　Ordinary handboards require surface treatment similar to products, so as to thoroughly check the appearance effect. When grinding, first use a thick sandpaper to grind it slightly. Before detailed grinding, the rough edge of the surface shall be removed.

　　根据要求对手板表面进行不同程度的磨削，经过一次磨削后，通过喷涂腻子，使手板表面的粗糙度扩大。这样眼睛就能看到缺陷。然后，有可能在计划的基础上进行部分分级，直到一个面板更终完成整个磨削过程。

　　According to the requirements, the surface of the hand board is grinded in different degrees. After one grinding, the surface roughness of the hand board is enlarged by spraying putty. So that the eye can see the defect. It is then possible to partially grade on a planned basis until one panel has finally completed the entire grinding process.

　　济南手盘与我们共享的手盘磨削过程主要有以下三个作用:

　　The grinding process of Jinan handdisc and our shared handdisc mainly has the following three functions:

　　1. 关于基材，主要是去除基材表面的毛刺和油灰;

　　1. For the base material, it is mainly to remove the burr and putty on the surface of the base material;

　　2. 于刮腻子的外观，一般外观比较粗糙。要求通过砂光处理获得相对平整的外观，这样的磨削效果可以降低工件表面的粗糙度;

　　2. The appearance of puttying is generally rough. It is required to obtain a relatively flat appearance through sanding, so that the grinding effect can reduce the surface roughness of the workpiece;

　　3.增强涂层的附着力。在喷涂新漆膜之前，一般有必要对旧漆膜进行打磨后的工作，因为涂层在过度光滑的外观附着力较差，打磨后可以增强涂层的机械附着力。

　　3. Enhance the adhesion of the coating. Before spraying the new paint film, it is generally necessary to polish the old paint film, because the adhesion of the coating on the excessively smooth appearance is poor, and the mechanical adhesion of the coating can be enhanced after polishing.