Method 2: Using Free AutoLISP Scripts (The Professional Way)

Browse to the location of your downloaded .lsp file, click , and close the dialog box.

Whether you are an architect, a landscape designer, or an engineer, hatch patterns are a fundamental part of producing detailed, professional CAD drawings. While DWG is the native, go-to format for saving AutoCAD models and drawings, are specifically used to store custom hatch patterns.

Because of this structural difference, you cannot simply rename a .dwg file extension to .pat . The geometry must be translated into the specific code syntax that AutoCAD's hatch engine requires.

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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