Post processor

A Post Processor is a unique “driver” specific to a CNC machine; some CNC machines start at different locations or require extra movement between each operation, the Post-Processor works with the CAM software to make sure the G-Code output is correct for a specific machine build.

The Post Processor controls the format and syntax of the program that is generated for the controller that controls a specific machine (typically a CNC or a robot).[1]

A post processor is used with the CAM (Computer Aided Manufacturing) Software to generate G-code for a specific CNC Machine. .

The Post-Processor will alter the G-Code output to suit a specific machine; a "Post" can be used for complex things like producing a proprietary machine language other than G-Code or M-Code, or a Post-Processor maybe used to start a machine from a specific position.

Another example of use for a Post-Processor would be an ATC (Automatic-Tool-Change)for a CNC, the Post-Processor is required so the correct Tool is collected from the correct location.

Some CNC devices connect to the computer using "Serial Communication" and some CNC devices connect using "Parallel Communication", the Post-Processor does not influence the "communication", the Machine Software does.

References

  1. ↑ http://bobcad.com/support/post-processors/ BobCad post processor
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