The core of the CNC system is not a chip or a horse, is the algorithm, is the code optimization, with this, there is the accuracy and stability of the CNC system ..., as for the CNC system electromagnetic compatibility and so on in the algorithm in front of the small matter. Siemens a motion control card can put us stuck. The core of the mechanical system is more than hello, the material is not to talk about, the structure of the part, we always think that the mechanical is a sunset subject, but every time a foreigner to come up with a new structure, we stayed, the original thing can also be so! What can be reconfigured concepts, institutions, static dynamic structure optimization optimization theory, space motion analysis decoupling what, people have touched the doorway, their computational mechanics into a commercial software, our computational mechanics, in addition to academician Zhong's contribution to me as if enlightened, the other is not still lying in the paper, I do not know, I'm afraid that you can use ADAMS is not necessarily well versed in dynamics it, will be ABAQUS ANSYS. Will ABAQUS ANSYS I'm afraid of elastic mechanics Numerical calculation of a half-knowledge of it, although it can be used, but also have to see which optimization is good, right, we are repeating the past experience, and even some of the experience should have been overcome by the disease, people are digging theory. Functional components, angle milling head is now okay, but the double pendulum head, universal milling head. Spindle and a trouble, motor technology is still standing in the pit, which still have to work harder, or coil ah, torque motor to cry. Understanding of people know, buy imported machine tools, buy five-axis system, buy nano-precision CNC systems, people are masters, which spends a lot of money but also look at the face of others, to others to write a warranty, the feeling is extremely unpleasant. Machine tool development to today, can be said to be almost standardized, professional division of labor, the problem is that this specialized division of labor, the core of the key to the hands of foreigners, exports are progress, it is worthwhile to beat the drums and dance, but can not just dance light rely on brainstorming across the technological gap, that is to say, the square dance is too disruptive, can not always jump. Export of machine tools do not know which bearing, which coil, which encoder, which functional parts, do not look at the news to see the gap, do not look at the connotation of the appearance, do not want to spring dream reality, or sink into the study it, down-to-earth to do basic research is easier to break the technology blockade than to write press releases, but this is difficult to sit on the bench, the light spend money not to make money is even more difficult to do not do in the morning to spread the seeds, cut wheat at noon in the line of work difficult to be really! It is difficult.