Although line spaces are not required between hatch patterns pasted into the file, a blank line must be placed after the last hatch pattern definition in a PAT-file. There are two files: acad.pat (British units) and acadiso.pat (metric units) (AutoCAD LT: acadlt.pat and acadltiso.pat), which are located as noted above. If it is still not listed, then the PAT-file is corrupted.Įditing PAT-files, using Notepad You may edit the default PAT-files that are installed with AutoCAD by using Notepad and adding your custom hatch pattern data at the end of the file. Note: If you don't see the PAT-file listed, ensure that the PAT-file is saved in one of the listed paths in the Support File Paths-node in tab 'Files of the options. AutoCAD for Mac 2011 to 2015: ~Home/Library/Application Support/Autodesk/roaming/ AutoCAD /Rxx.x/ /Support.AutoCAD for Mac 2016 and later: ~Home/Library/Application Support/Autodesk/ AutoCAD / Patterns.Custom hatch patterns files will automatically be copied to the following locations:.Click the drop-down arrow and select Add Patterns.Click the pull-down in the Hatch visor for Patterns and click Open Library.On any drawing, type the HATCH command.In the 'Browse for Folder'-dialog box, browse to and select the folder to add.In the Options dialog box switch to tab 'Files' and select node 'Support File Search Path'.Click the Application menu (the big 'A' at the top left) Options.To add a custom folder to the applications support file search paths If the preference is to keep custom hatch patterns as well as other customization in a different location, the folder(s) need to be added to the applications search path. It is usually the first one shown, pointing to the current user folder. The default path is specified in the Support File Search Path listed under the Files tab in Options.If there is no longer a PAT-file of an existing hatch used in a drawing, use the express tool SUPERHATCH to try and bring in the custom hatch pattern ( not available in AutoCAD LT).See How to turn on hidden files and folders on Windows.If you don't see the path above: The AppData and Application Data folders in the above paths are hidden folders.Rxx.x stands for a specific AutoCAD release version:.

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