--- description: Need post-processor files for CAM software with CNC machining? Here is a list of the most common CNC post-processing files available for free download and use. title: CNC Post Processor Files Free Download image: https://www.stylecnc.com/uploads/allimg/231204/1-231204145U40-L.jpg --- # [Free Download Post Processor Files for CNC Machining](https://www.stylecnc.com/blog/free-cnc-post-processor-files.html "Free Download Post Processor Files for CNC Machining") Last Updated: 2024-03-12 By [Charles](https://www.stylecnc.com/author/charles "Charles")3 Min Read ![CNC Post Processor Files Free Download]() ## CNC Post Processor Files Free Download Need post-processor files for CAM software with CNC machining? Here is a list of the most common CNC post-processing files available for free download and use. Post processor is a coding software that compiles tool path files into instructions that can be recognized and executed by CNC machine tools. Post-processor files are G-code or M-code instructions that automate CNC machining, which originate from the tool path generated by the CAM software. Post processing is a coding program that compiles machining process, tool selection, tool path and cutting parameters to create instruction files used by [CNC machines](https://www.stylecnc.com/products/ "CNC machines"). After automatically programmed tool path calculation, the tool position data file is generated, not the CNC program. Therefore, at this time, it is necessary to try to convert the tool path file into a program that can be executed by the specified CNC machine, and then input it into the control system through communication or DNC to perform automatic part machining. When installing CNC programming software (CAD/CAM), the system will automatically set up some post-processing programs. When the CNC system used by the programmer corresponds to it, the corresponding post-processing program can be directly selected, and the post-processing program selected during actual processing should also be consistent with the programmer's system. Therefore, when using CAM software for CNC programming, the post-processor must be set and modified as necessary to meet the requirements of the system and the file format. If a programmer has little understanding of the basic CNC system requirements and does not set up a post-processor when performing CNC programming, coding errors or redundant instructions will result. This requires that NC programs must be manually added or deleted before transferring the program to the CNC machine. If the modification is incorrect, it can easily cause an accident. The following is a list of the most commonly used post-processor files for [CNC routers](https://www.stylecnc.com/cnc-router/ "CNC routers") with [Vectric Aspire software](https://www.vectric.com/ "Vectric Aspire software"). ![Vectric Aspire Software for CNC Machining]() 3 Axis CNC Router Post Processor Files for STM6090, STM1212, STM1325, STM1530, STM2030, STM2040. [STYLECNC-3-AXIS-XYZ-MM.zip](https://www.stylecnc.com/uploads/file/231204/1701675292807477.zip "3 Axis CNC Router Post Processor Files") 3 Axis Series with ATC (Automatic Tool Changer) Post Processor Files for STM1325C, STM1325D, STM1530C, STM1530D, STM2030C, STM2040D. [STYLECNC-3-Axis-ATC-MM.zip](https://www.stylecnc.com/uploads/file/231204/1701675309787403.zip "3 Axis Series with ATC (Automatic Tool Changer) Post Processor Files") 4 Axis CNC Router R1 Series Post Processing Files for STM1325-R1, STM1530-R1, STM1625-R1, STM2030-R1. [STYLECNC-4-AXIS-X-A-R1-MM.zip](https://www.stylecnc.com/uploads/file/231204/1701675326177953.zip "4 Axis CNC Router R1 Series Post Processing Files") 4 Axis R3 Series Post Processing Files for STM1325-R3, STM1530-R3, STM1625-R3, STM2030-R3. [STYLECNC-4-AXIS-Y-A-R3-MM.zip](https://www.stylecnc.com/uploads/file/231204/1701675344855726.zip "4 Axis R3 Series Post Processing Files") 4 Axis R1 Series with ATC (Automatic Tool Changer) Post Processing Files for STM1325C-R1, STM1530D-R1, STM2030C-R1, STM2040D-R1. [STYLECNC-4-Axis-ATC-R1-MM.zip](https://www.stylecnc.com/uploads/file/231204/1701675356258029.zip "4 Axis R1 Series with ATC (Automatic Tool Changer) Post Processing Files") We'll always strive to keep updating various post-processor files to match different CAM software. ### Share This Article With Others ### Further Reading #### How Fast And Thick Can Fiber Lasers Cut Through Metal? 2023-11-23[Prev Post](https://www.stylecnc.com/blog/fiber-laser-cutting-metal-thickness-speed-power.html "How Fast And Thick Can Fiber Lasers Cut Through Metal?") ### Top 10 Best Fiber Laser Cutters for Metal In 2026 2024-03-15[Next Post](https://www.stylecnc.com/blog/best-fiber-laser-cutters-for-metal.html "Top 10 Best Fiber Laser Cutters for Metal In 2026") ### Related Topics [](https://www.stylecnc.com/user-manual/calibrate-precision-cnc-wood-router.html "How to Calibrate the Precision of CNC Wood Router?") 2021-08-312 Min Read #### [How to Calibrate the Precision of CNC Wood Router?](https://www.stylecnc.com/user-manual/calibrate-precision-cnc-wood-router.html "How to Calibrate the Precision of CNC Wood Router?") 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