Embracing Industry 4.0 technologies, Thai Summit engineering team has implemented full automation assembly line concepts, changing from the previous semi-automation manufacturing. Instead of semi-automation cells, the new full automation assembly line layout is a simple line that saves space and does not require any workers. The line is equipped with robots, assembly fixtures, AGV for loading/unloading with an auto racking and a vision system. While having parts loaded and assembled by robot, the finished part will be detected and quality checked by a vision system. Therefore no NG parts reach the end customer. Furthermore, the NG data acquired by the vision system can alert a production engineer to correct the system, which reduces scrap rate and improves the quality of the part.