METHOD OF PLOTTING TOOL SHAPE.

摘要

This invention relates to a method of plotting tool shape for a numerical control device (CNC) that plots a tool shape on a display screen to perform machining simulation. By inputting the tool shape data (2) including the data (2c) on the edge radius of a tool, the user plots a tool shape (3) showing the tool edge part using the arc of the tool edge radius based on the tool shape data (2). Since the tool shape (3), whose edge part has the arc of the same tool edge radius as that of an actual tool, is plotted and machining simulation is executed, an accurate plotting can be displayed.