First of all, we have to figure out what is meant by opening the mold body. In fact, opening the mold usually refers to the mold used to punch the board when making the shape. Some factories also refer to the test frame. Everyone’s understanding is different. , You can understand whether or not to open the PCB for proofing. In fact, the samples are only used for testing and debugging. There is no need to open the mold. The test frame is also the same.
What if the structure drawing is wrong when the mold is opened, and the data needs to be modified, so there is no need to open the mold, just use CNC to make it directly. For testing, you can choose flying probe test, which will reduce a lot of risks. At least there is no need to worry about reopening the mold. If it is mass production, it is recommended to open the mold and make the goods faster, which will be slightly cheaper. Depending on the positioning of your own products, some do not accept mold punching.
Regarding the issue of charging for pcb proofing and v-cutting, normal pcb proofing and v-cutting is free of money. If the number of SETs is large, for example, more than 50PCS, additional V-cutting fees will be charged, mainly for small boards. If there are many types of V cut together, an appropriate fee will be charged separately when quoting.
Before PCB proofing, you need to communicate clearly with the proofing factory about your needs, otherwise some small details will directly cause the entire board to be scrapped