: A utility from CAD Studio specifically designed to export pattern definitions (PAT files) from existing hatches in a DWG drawing.
If you already have a full version of AutoCAD, you might not need external software. AutoCAD includes an Express Tool called .
| If you need to… | Recommended action | |----------------|--------------------| | Convert a drawn tile unit from DWG to PAT | Use or PatLab (DXF intermediate) | | Extract pattern from an existing DWG hatch | Usually not possible; manually recreate the tile | | Automate for simple line-based repeating blocks | Write a Python script using ezdxf | | Do this once | Export tile to DXF → use PatLab online | | Do this professionally | Buy HatchKit or use BricsCAD’s built-in pattern export |
Copy your new .pat file and paste it into the AutoCAD Support folder.
A more powerful built-in method is available in recent versions of AutoCAD (like 2024 and later). Commands such as DRAWHATCH and SAVEHATCH allow you to draw a pattern using simple entities (lines, arcs, etc.) within a defined 1x1 unit boundary. The DRAWHATCH command provides the framework to define the pattern, and SAVEHATCH then writes that definition to a PAT file. This is an excellent method for creating precise, measured patterns directly from draft geometry. dwg to pat converter
(v2000), upload it, and it will generate the pattern code for you.
The Ultimate Guide to DWG to PAT Converters: How to Create AutoCAD Hatch Patterns
A simple text file that defines the lines, angles, and spacing of a hatch pattern.
If your design uses blocks, explode them down to their base geometry. : A utility from CAD Studio specifically designed
To understand why a converter is necessary, it helps to understand how these two file formats store data.
To help narrow down the best approach for your specific project, let me know:
The you want to convert (e.g., simple bricks, organic curves).
*square grid, A simple square pattern 0, 0,0, 0,1, 1,-1 90, 0,1, 0,1, 1,-1 | If you need to… | Recommended action
Always ensure your drawing geometry is close to the 0,0 UCS origin point in your DWG file before converting, as massive coordinates can cause precision errors in the PAT code.
This comprehensive guide covers everything you need to know about converting DWG files to PAT format, the best tools available, and how to troubleshoot common conversion issues. What is a PAT File?
A is an essential tool for any designer looking to customize their project’s aesthetics beyond standard brick and gravel hatches. While LISP routines remain the most popular "pro" choice, beginners may find SuperHatch or paid plugins more user-friendly.
A bridges the gap between visual design and CAD programming. Instead of doing the math in your head, you simply draw your repeating tile in AutoCAD, clean the geometry, and let the converter generate the .pat file for you.