How to Convert dgn to dwg?

To convert a DGN file (MicroStation format) to DWG (AutoCAD format), follow these steps based on your available tools:

Method 1: Using AutoCAD

1. Open AutoCAD
   Launch AutoCAD (version 2013 or newer for built-in DGN support).
2. Import the DGN File
   • Type IMPORT in the command line.
   • Select the DGN file you want to convert.
   • Choose import settings:
     • Layers: Map DGN levels to AutoCAD layers.
     • Units: Match the drawing units (e.g., meters, feet).
     • Colors/Linestyles: Preserve or adjust as needed.
3. Save as DWG
   • After importing, go to File > Save As.
   • Select AutoCAD Drawing (.dwg) as the file type.
   • Choose a location and click Save.

Method 2: Using MicroStation

1. Open the DGN File
   Launch MicroStation and open your DGN file.
2. Export to DWG
   • Go to File > Export > AutoCAD Drawing.
   • Select the export format (DWG or DXF).
   • Configure export settings:
     • Version: Choose an AutoCAD version (e.g., 2018).
     • Layers/Levels: Map MicroStation levels to AutoCAD layers.
     • Fonts/Symbols: Convert text styles and symbols.
3. Complete the Export
   • Specify the output filename and location.
   • Click Export to generate the DWG file.

Method 3: Using Third-Party Tools

• AutoDWG DGN to DWG Converter
  • Add the file to the desktop version for quick conversion.
  • Supports batch processing.
• Online Converters (Use with caution for sensitive files)
  • Sites like Zamzar offer DGN-to-DWG conversion.

Tips for Successful Conversion

• Check Compatibility: Ensure both formats use similar units (e.g., metric vs. imperial).
• Layer Mapping: Verify layers/levels translate correctly to avoid organization issues.
• Test the Output: Open the DWG in AutoCAD to confirm elements (lines, text, blocks) display properly.
• Batch Conversion: Use tools like AutoDWG DGN to DWG Converter Pro version for multiple files.

Common Issues & Fixes

• Missing Elements: Re-import with adjusted layer/unit settings.
• Font Substitution: Replace missing fonts in AutoCAD via STYLE command.
• Block/Cell Conversion: Use EXPLODE in AutoCAD if blocks import as DGN references.

Choose the method that fits your workflow. For occasional use, AutoCAD/MicroStation import/export works. For frequent conversions, third-party tools like AutoDWG DGN to DWG Converter are more efficient.