Contactless Measurement of Error in Lathe Tool Positioning

This paper presents a study on the importance of correct lathe tool positioning in various applications, including mechanical, medical, and manufacturing fields. The objective of this study is to analyze tool position error and the distance travelled by the tool when the work piece is stationary, with the aim of reducing positional inaccuracy of the lathe tool. Accurate positioning is critical in applications that require precision in the micrometer range. To achieve this, various image segmentation techniques such as Graythresh, Multithresh, and Adaptthresh have been applied and evaluated for estimating the actual tool position and error in tool movement distance. Results show that Multithresh provides the least mean absolute deviation of error and the least variance of error, making it the most accurate technique for determining the tool position at the micrometer scale, compared to Graythresh and Adaptthresh.