What differentiates absolute programming from incremental programming in FANUC?

In FANUC programming, absolute programming specifies coordinates relative to a fixed point known as the program's reference point or the origin, which is defined by the machine's setup. This means that when a command is given in absolute programming, the position of the tool is defined based on its coordinates in relation to that fixed origin, regardless of where the machine currently is positioned.

On the other hand, incremental programming measures movements and positions relative to the tool's current position. Instead of defining a position based on an absolute location, it expresses the movement needed to reach a new position as a vector from the tool's present point. Thus, it indicates how far to move in each axis to get to the next point, which can lead to more dynamic programming during operations.

The distinction made is key for machinists and programmers as it influences how they write programs for CNC operations. Absolute programming is especially useful for defining precise part features, while incremental programming can simplify movements in a sequence of operations where the starting point may change. This insight allows operators to choose the appropriate method based on the manufacturing requirements and the immediate context of the machining task.