Hand board proofing, hand board making three processes, making common sense and advantage comparison!

产品平面设计完成或者一个新产品图纸完成后，在投放市场前，会做此产品的市场效益分析，或者要确认图纸与实物是否有差别或者设计是否合理，手板制作是企业必不可免的一道工序。

After the product graphic design is completed or the drawing of a new product is completed, the market benefit analysis of the product will be done before it is put on the market, or it is necessary to confirm whether the drawing is different from the real object or whether the design is reasonable. Hand board making is an inevitable process for the enterprise.

什么是手板呢？简单来说。手板就是在没有开模具的前提下，根据产品设计或者结构图纸先做一个或者多个模型，来检查外观或者结构合理性的功能样板，其实就是打印设计产品的样板。

What is a hand board? In short. The hand board is a functional template for checking the rationality of appearance or structure by making one or more models according to the product design or structural drawings without opening the mold. In fact, it is a template for printing and designing products.

目前手板制作的常用工艺有三种，魔猴网作为3D打印业内的翘楚，一键在线快速报价，三十余种打印材料可选，除了对3D打印手板优势巨大外，对于其它两种工艺也是比较熟悉，今日，小编为大家总结了三种制作手板工艺的常识对比，希望大家可以对产品手板打样有更多的了解。

At present, there are three commonly used processes for making hand boards. As a leader in the 3D printing industry, magic monkey network offers one click online quick quotation, and more than 30 kinds of printing materials are optional. In addition to its great advantages over 3D printing hand boards, it is also familiar with the other two processes. Today, Xiaobian summarized the common sense comparison of the three hand board making processes, I hope you can know more about product hand proofing.

一、CNC手板制作

1、 CNC hand board making

CNC是电脑数控的机床按编号的程序用一块整版挖掘而成。CNC使用的是Mastercam系统，主要是用来控制CNC刀路。CNC数控铣床专门用来加工一些方的，不规则的物件，而车床则是加工圆的物件。CNC可以加工一些比较大的工件。可以达到1800*900*600。相对SLA较便宜，满足手板的种类很多。

CNC is a CNC machine tool excavated from a whole page according to the numbered program. CNC uses MasterCAM system, which is mainly used to control CNC tool path. CNC milling machine is specially used to process some square and irregular objects, while lathe is used to process round objects. CNC can process some large workpieces. It can reach 1800 * 900 * 600. Compared with SLA, it is cheaper and meets many types of hand boards.

CNC手板优势：韧性好，张度高，成本低，材料可选择性广泛。

Advantages of CNC hand board: good toughness, high tension, low cost and wide material selectivity.

二、复模（真空灌注）

2、 Re molding (vacuum pouring)

复模就是利用原有的样板，在真空状态下制作出硅胶模具，并在真空状态下采用PU材料进行浇注，从而克隆出与原版相同的，比原样板耐高温，强度硬度都好的复制件。

Replica is to use the original template to make a silica gel mold in vacuum, and pour it with PU material in vacuum, so as to clone the replica which is the same as the original and has better high temperature resistance, strength and hardness than the original template.

如果客户要求做几套或是几十套时，适合用这种方法，这样大大降低了成本。 真空复模出来的产品样板有一定比率的缩水,真空复制产品样板成本一般来说会相对CNC低，即CNC加工多套样板的比CNC加工1套后再进行真空复模的低(对复模出来的样办材质有特殊要求的除外);

If the customer requires several sets or dozens of sets, it is suitable to use this method, which greatly reduces the cost. The product template produced by vacuum copying has a certain shrinkage rate. Generally speaking, the cost of vacuum copying product template will be lower than that of CNC, that is, the price of multiple sets of templates processed by CNC is lower than that of vacuum copying after one set processed by CNC (unless there are special requirements for the material of the samples produced by copying);

复模材料有：普通PU：较脆，韧性;透明PU：原材料较好，但是贵的;类橡胶PU;8400软胶。

The compound mold materials are: ordinary Pu: relatively brittle and ductile; Transparent Pu: raw materials are good, but the price is expensive; Rubber like Pu; 8400 soft glue.

通过真空复模的技术可以有两种用途：

There are two uses of vacuum compound molding technology:

1、进行小批量的产品样品生产;

1. Carry out small batch product sample production;

2、改变材质;可以将由石膏油泥雕刻的样板通过复模改变,到易于后续加工处理的PU或POLY的材质，或是将ABS材质改变为有特殊要求的材质(如：要求透明的、耐高温的、高强度的、或橡胶特性的等等)。

2. Change the material; The template carved by gypsum oil mud can be changed to Pu or poly material that is easy to be processed later, or ABS material can be changed to material with special requirements (such as transparent, high temperature resistant, high strength, or rubber characteristics, etc.).

三、3D打印手板

3、 3D printing hand board

3D打印是快速成型技术的一种，它是一种以数字模型文件为基础，运用粉末、线性塑料或液态树脂材料，通过逐层打印的方式来构造物体的技术

3D printing is a kind of rapid prototyping technology. It is a technology that uses powder, linear plastic or liquid resin materials to construct objects by printing layer by layer based on digital model files

SLA工艺打印树脂材料

SLA process printing resin material

3D打印手板和以上两种工艺对比，主要的优势在于：

Compared with the above two processes, the main advantages of 3D printing hand board are as follows:

1、手板样品制作速度快

1. Fast sample making

一般来说利用SLA工艺打印手板的速度是CNC制作手板速度的3倍，所以小件，小批量手板制作选择3D打印。

Generally speaking, the speed of printing hand board by SLA process is three times that of CNC hand board, so 3D printing is selected for small piece and small batch hand board production.

2、3D打印机全流程自动加工，手板制作精度高，模型误差小，误差可控制在±0.05mm

2. The whole process of 3D printer is automatically processed, with high hand board manufacturing accuracy, small model error, and the error can be controlled within ± 0.05mm

3D打印手板全程不需要人为干预，这就避免了因人为因素造成的误差，CNC手板制作容易出现手板变形问题。

There is no need for human intervention in the whole process of 3D printing hand board, which avoids the error caused by human factors. The hand board deformation is easy to occur in the production of CNC hand board.

3、3D打印手板可选材料更多

3. More materials for 3D printing hand board

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