What is a tool path in CNC milling?

A tool path in CNC milling refers specifically to the trajectory that the milling tool follows to effectively shape the workpiece as per the desired specifications. This path is programmed into the CNC machine, allowing it to move precisely along the defined route to remove material and create features on the workpiece such as holes, pockets, or complex contours. The tool path is crucial for ensuring accuracy and efficiency during milling operations, as it dictates how the tool interacts with the material.

In essence, the tool path determines the overall effectiveness of the milling process, influencing factors such as cycle time and surface finish quality. By programming the correct tool path, machinists can optimize operations and achieve the required tolerances in their finished products.