In fact, smt is mainly familiar with the operation of the machine. After a long time, you will naturally have experience in dealing with problems. I also want to study it myself. It is not difficult to become a technician. First, you must be proficient in operation, be able to handle abnormal problems independently, and be familiar with programming. Then there is the ability to maintain the machine. As long as you have the heart, you will succeed! Good luck! I used to be a mounted policeman.