Each machine tool and controller combination has different requirements, for example tool change commands, specific M-codes and G-codes, and the sequence of G-codes that is permitted in a program line.
Postprocessing is the process of outputting machine code so that your tool path is recognized by a machine tool and controller combination. Before you can postprocess a tool path in NX, you must create the tool path in NX and create an appropriate post processor in NX Post Builder.
A tool path consists of the following:
Information about tool motion, such as GOTO points and feed rates.
Instructions to the controller, for example, coolant and spindle control, called events.
The NX postprocessor, referred to as NX Post, consists of the following:
Instructions to generate code words that control the machine tool’s response to events.
Definitions of how to sequence and format the output words.
Instructions to Post Builder so that can recreate the graphic interface for your post when you edit it.