Once you have generated your .PAT file, you need to make it accessible to AutoCAD:
If your pattern is currently a block, use the EXPLODE command to reduce it to basic geometry. convert dwg to pat file
If you use Revit, you can import the DWG into a Revit project, explode it, and then export it back out. During specific export phases, Revit often generates temporary PAT files in the export folder that you can copy before they are finalized and deleted. Contact the Creator: Once you have generated your
contain true "Solid" features; solid fills in AutoCAD are handled differently than vector-based pattern repeats. Autodesk Community, Autodesk Forums, Autodesk Forum Direct Methods for Extraction LISP Routines (Recommended) : Use a LISP utility like convert dwg to pat file