Plunge Milling / Roughing: CNC Secret Weapon [ Complete Guide ]
Plunge Milling is a type of CAM Toolpath, though it can be programmed manually as we will see. The idea, is to rough out a pocket, profile, or 3D surface by plunging either a twist drill, an endmill, or a specialpurpose milling cutter straight down into the material. Here's a typical example: