Training institutions can only learn a little fur, which is similar everywhere. It's best to find a master who can make patterns in the factory for a period of time. Board making is a highly technical job, so practice is very important. As for tuition, of course, there are expensive and cheap ones. Generally speaking, professional schools will be more expensive. For example, Baiyun school in Guangzhou may cost tens of thousands of yuan, while private training center (about three months) only costs about two thousand yuan. Of course, what you say to the master will vary from person to person (to be clear, it is not that the tuition is low, but that he has no material)