抄録
The straightness is the degree of difference from a straight line geometrically. It is one of the indexes to express machining precision. In mechanical engineering, the accuracy of processing side and the exactitude of the table and the surface plate, which are the bases of the processing side, decide the quality of products. This research is aimed to mechanically operate the straightness-measuring instrument and measure consecutive positions in a short period of time. This report explains the automatic movement mechanism of the carriage, which is the base of this project.
