postprocessorer

Postprocessorer (plural form used in some languages) refers to software components that transform the output of one process into instructions or data tailored for a specific target system, device, or workflow. The term is used across industries, from computer-aided manufacturing to media processing, and often denotes a last-step translator that renders generic results into machine- or application-specific code or formats.

In computer-aided manufacturing and CNC workflows, a postprocessor is central. It converts generic toolpaths or machining plans into the exact syntax, codes, and conventions required by a particular controller or machine tool (for example, a specific G-code dialect, PLC commands, or spindle control). A postprocessor handles unit conventions, coordinate systems, tool changes, offsets, feed and speed schemes, coolant commands, and machine-specific safety or retraction quirks. Usually it is configured via a machine definition or template that captures the target hardware’s capabilities and constraints.

In 3D printing and related CAD/CAM contexts, postprocessors may adjust or enhance generated G-code after slicing. They can optimize travel moves, refine retractions, insert firmware-specific commands, or address known limitations of a printer’s controller. Commercial and open-source workflows often provide a library of postprocessors for a wide range of devices, with user-defined options to accommodate unusual machines or custom hardware.

Other domains use postprocessors for final adjustments in imaging, audio, or data pipelines, where post-processing steps refine results after primary generation.

Key considerations include compatibility with the target machine, maintainability of definitions, and the potential impact of errors in translation, which can affect tool paths or machine behavior.