This article presents a new method to evaluate the geometry of dull cutting tools in order to verify the necessity of tool\nre-sharpening and to decrease the tool grinding machine setup time, based on a laser scanning approach. The developed\nmethod consists of the definition of a system architecture and the programming of all the algorithms needed to analyze\nthe data and provide, as output, the cutting angles of the worn tool. These angles are usually difficult to be measured\nand are needed to set up the grinding machine. The main challenges that have been dealt with in this application are\nrelated to the treatment of data acquired by the system�s cameras, which must be specific for the milling tools, usually\ncharacterized by the presence of undercuts and sharp edges. Starting from the architecture of the system, an industrial\nproduct has been designed, with the support of a grinding machine manufacturer. The basic idea has been to develop a\nlow-cost system that could be integrated on a tool sharpening machine and interfaced with its numeric control. The article\nreports the developed algorithms and an example of application
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