A (Hatch Pattern) is a plain-text ASCII file. Every line of code defines a repeating tile or vector. A typical PAT line looks like this: *MyPattern, My custom description 45, 0,0, 0, 0.125, 0.1,-0.05
Once you have generated your .PAT file, you need to make it accessible to AutoCAD: convert dwg to pat file
Instead of converting DWG→PAT,
Express Tool. This allows you to use an Image, Block, or Xref as a repeating pattern. Autodesk Community, Autodesk Forums, Autodesk Forum Installation Once you have your file, move it to the AutoCAD support path (typically A (Hatch Pattern) is a plain-text ASCII file