Converting a .dwg file directly to a .pat (hatch pattern) file isn't a native "Save As" feature in AutoCAD, because PAT files are text-based scripts that define mathematical line repetitions, while DWGs are complex vector drawings.
. While a DWG contains complex geometry, a PAT file is a simplified text-based instruction set that tells AutoCAD how to repeat a specific pattern. Autodesk Community, Autodesk Forums, Autodesk Forum Depending on whether you are trying to a pattern from an existing drawing or convert dwg to pat file
: Another freeware tool from CAD Studio that extracts hatch pattern definitions from drawings. 2. Converting Custom Geometry to .PAT Converting a