CNC programs with absolute positioning have commands that are based from which point?

In CNC programming, absolute positioning refers to the method of defining locations based on a fixed reference point, which is known as the origin point. The origin point, typically designated as the coordinates (0,0,0) in a three-dimensional space, serves as the starting reference for all subsequent movements commanded in the program. This means that every command in an absolute positioning CNC program specifies the exact location relative to this predetermined origin.

Using the origin point allows for consistency and accuracy when programming machining tasks, as all movements are calculated from this fixed reference. When compared to other potential reference points, such as the tool tip, workpiece edge, or safety zone, the origin point remains a universal standard that simplifies the programming and operational process. By measuring all coordinates from the origin, CNC operators can maintain a clear and manageable system for programming complex tasks.