文档介绍：Introduction
This online help documentation contains the following sections:
Postprocessing in general
Postprocessing with Post
Developing a Post
Installing a Post
Postprocessing in General
Your primary use of the Manufacturing application is to generate NX tool paths in order to
manufacture parts. Generally, you cannot just send an unmodified tool path file to a machine
and start cutting because there are many different types of machines. Each type of machine
has unique hardware capabilities and requirements; for instance, it can have a vertical or a
horizontal spindle, it can cut while moving several axes simultaneously, etc.
Furthermore, each machine is controlled by puter (., controller). The controller accepts a tool
path file and directs tool motion and other machine activity (., turning the coolant or air on and off).
Naturally, just as each type of machine has unique hardware characteristics, controllers also differ in
software characteristics. For instance, most controllers require that the instruction for turning the coolant
on be given in a particular code. Some controllers also restrict the number of M codes that are allowed in
one line of output. This information is not in the initial NX tool path.
The tool path file hits the controller's brick wall of patibility. The tool path data is not
formatted for the machine.
Therefore, the tool path must be modified to suit the unique parameters of each different
machine/bination. The modification is called postprocessing. The result is a
postprocessed tool path.
Two elements are essential for postprocessing. They are:
Tool Path Data This is an NX tool path.
A Postprocessor This is a program that reads the tool path data and reformats it for use with
a particular machine and its panying controller.
The tool path data is reformatted by the postprocessor for the machine.
1
Make sure the output units in NX match the Postprocessor uni