PowerMill 2020 primarily uses .pmoptz files. If you find older .opt files, they may require the Ductpost utility to function correctly.

If generic posts do not meet your needs, check these verified secondary sources for free downloads: Manufacturer Websites:

While "free" is tempting, a post processor controls a machine worth tens of thousands of dollars. Generic free downloads often lack:

Generic 3-axis post processors are free and stored locally upon installation. You can usually find them in the following directory: