Here is a guide on where to safely find and download these files for free. 1. Autodesk Knowledge Network (Official)
Q: What is the difference between a post processor and a machine-specific code? A: A post processor is a software component that generates machine-specific code, which is a set of instructions that can be executed by the CNC machine.
Use NCViewer.com to simulate the G-code before sending to your machine. This free tool catches many post errors.
| Problem | Likely Cause | Solution | |---------|--------------|----------| | | The .pmoptz was made for PowerMill 2024. | Edit the file with Notepad++. Change version="2024" to version="2020" at the top line. | | G-code has no line numbers (N values) | The post is set to suppress_sequence_numbers = true . | Open in Post Processor Utility, find the format section, change to false . | | Arc moves cause "Radius too small" errors | Incorrect arc center format (Incremental vs Absolute). | Change arc_center_type from absolute to incremental (or vice versa) in the post file. |
Here are a few general steps and considerations for finding and downloading a post-processor for PowerMill 2020: