Convert Dwg To: Pat File !free!

Converting a DWG file to a PAT file is not a standard "Save As" function in AutoCAD, as these formats serve different purposes: DWG stores entire vector drawings, while PAT files contain text-based mathematical definitions for repeating hatch patterns. 

If you have drawn a custom shape (like a specific tile layout) and want to turn it into a reusable hatch, follow these steps: convert dwg to pat file

1. Create a Block from your pattern tile.
2. Use SUPERHATCH → "Block" → Select your block.
3. The block acts as a dynamic hatch without requiring a PAT file.

1. Open your DWG in AutoCAD.
2. Trim or isolate the smallest repeating tile of your pattern.
3. Remove arcs/circles – convert them to polyline segments.
4. Export as DXF R12 (I recommend File > Export > Other Formats).
5. Open HatchKit or HatchMaker (or free trial of AutoCAD Hatch Pattern Maker plugin).
6. Import DXF, define tile boundaries, generate PAT.
7. Save PAT file to AutoCAD support folder.
8. Restart AutoCAD (or run REINIT to refresh patterns).
9. Run HATCH > Custom > Select your new pattern.

Alternative Methods for Converting DWG to PAT Files Converting a DWG file to a PAT file

What is a DWG File?

A DWG (DraWinG) is a proprietary binary file format used by AutoCAD. It stores: Create a Block from your pattern tile