Plastic mould design focuses on the structure of products to meet the requirements and pay attention to the ingenious structure. Generally, the structure of the metal die is relatively much simple. It pays more attention to the precision of the mould, so the knife-edge die gap is the key to good or bad of the metal die. Metal mold is also related to some structural problems, but usually there is off-the-shelf experience can be used. However, the plastic mould is different, it changes a lot. Sometimes, people may face the same problem, but they will have the different ideas and come to different results.

Additionally, the designers should know the manufacturing process very well, and must clear that the design will be used to production. Able to prodduce is the essential requirement, what’s more, the designer should try his best to make the produce more convenience, and make the cost much lower.