Are mold design and numerical control technology difficult?

Because the situation of each company is different ~ the technical level of technicians is different ~ the English demand is different, but it also depends on which field you are engaged in. I ~ what you said here is not too difficult ~ I said the foundation ~ Because the foundation of these two doors is actually a little inconsistent with the names of these two doors ~ The basic introduction of abrasive tools is mechanical drawing, tolerance fit and metal technology ~ ~ The basis of numerical control is numerical control operation based on lathe operation, including mechanical drawing. To put it bluntly, these two things are almost the same at first ~ it is a bit difficult to go deeper ~ abrasive tools need to learn professional knowledge such as mold design and CAD design. (As mentioned above, the salary is basically between 3000 and 7000), and there are some carving arts ~ (it is not easy to learn carving well, and the salary is tens of thousands ~). Let's talk about CNC first: CNC is nothing more than CNC machine tools ~ (CNC lathes ~ CNC milling machines, CNC grinders ~), but they are all developed from turning, milling, planing and grinding drills ~ that is, many advanced ones (salary is about 1800~4000~)~ The most difficult thing to learn CNC is CNC programming (programming salary is 2000 ~ 6000)