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Robot arms have been widely utilized in various manufacturing and automation applications,such as aerospace,automobile,energy,machinery,semiconductors,etc.Especially in the development of Industry 4.0 and Advanced Manufacturing,where mass customization has become the leading trend of production,automation with robot arms allow manufacturers to operate engineering tasks more efficiently to react to consumer demand.However,the inevitable error of end effector absolute positions probably is one of the biggest obstacles to the development of full automation of robot arm operations.