Hand board proofing, hand board making three processes, making common sense and advantage comparison!
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.
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.
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.
1、 CNC hand board making
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.
Advantages of CNC hand board: good toughness, high tension, low cost and wide material selectivity.
2、 Re molding (vacuum pouring)
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.
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);
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.
There are two uses of vacuum compound molding technology:
1. Carry out small batch product sample production;
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.).
3、 3D printing hand board
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 process printing resin material
Compared with the above two processes, the main advantages of 3D printing hand board are as follows:
1. Fast sample making
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. 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
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. More materials for 3D printing hand board
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