- Make a Drafting View in Revit with a couple of Filled Regions in it.
- Set the filled Regions to the Revit Hatch Patterns that you want to export to PAT files.
- Export the Drafting View to a 2000 version DWG file
- Open the DWG file in AutoCAD
- In AutoCAD, APPLOAD then browse to getpat.lsp file. To get this file, right-click and Save Target as from this link.
- After loading the lisp file, File - Save As the DWG, to something in the same directory (this step just makes AutoCAD and the LISP aware of where the PAT files should be saved)
- Then, type GETPAT
- Select the hatch you want to export. It *should* be saved as a PAT file to the same directory that the DWG file is in.
EDIT - you could also try this method:
What Revit Wants: Native Revit can make PAT files too - you just have find them ...
In response to this tweet:
Would be nice if you could get the pat files back out of a #Revit file...
— Jason Rostar (@jrostar) September 17, 2012
Related forum post:
More free lisps: