Abstract
In micro-turning of thin shafts, the height of a cutting tool must be measured and adjusted against the work-piece center. The height difference may affect error in diameter and surface roughness. But, it is difficult to adjust the tool tip with visual inspection. In conventional turning, vernier calipers or micrometers are commonly used for diameter measurements, but it is extremely difficult to measure workpieces with diameters, for example, in the range of 0.1 mm with these instruments. In this research we have tried to apply image processing techniques for these measurements need.
