Exporting Custom DWG Layers from Revit

Introduction

• Problem: Defaults in Revit for naming and coloring layers when exporting to DWG/CAD formats can be frustrating.
• Solution: Customizing the export settings in Revit to fit your specific needs.
• Sponsor: ZWCAD (details about ZWCAD's features and benefits in the introduction).

Demonstration

Default Export in Revit

1. Steps to Export a DWG File:
   • Navigate to File > Export > CAD formats > DWG.
   • Define the file path and file type (e.g., AutoCAD 2018) and save.
2. Default Outcome:
   • Opens the exported file in AutoCAD.
   • Layers named and colored by Revit's default system.
   • Example: Selecting a wall shows a 'wall' layer, selecting sanitary fixtures shows its own layer, etc.
   • Viewing in AutoCAD, the Layer Properties reveals numerous layers based on what’s shown in the view.
   • Default might not align with specific project or company needs.

Customizing Layer Names & Colors

1. Preparation:
   • Decide on the custom naming conventions and color schemes before configuration. E.g., casework, curtain walls, doors, furniture, etc., each with specified colors.
2. Steps to Customize:
   • In Revit: Repeat the export process up to selecting DWG format.
   • Before saving, select Export Setup to customize settings.
   • Create a new setup (e.g., named “Test”).
   • Configure the following tabs:
     • Layers: Assign names/colors to Revit categories (walls, windows, doors, etc.).
     • Colors: Set the specific numerical color codes (e.g., 70 for walls, 50 for windows, etc.).
3. Example Configuration:
   • For Walls: Assign layer name Wall, color code 70.
   • For Windows: Assign layer name Window, color code 50 (with exception for glass set to another layer/color).
   • See detailed steps for categorizing elements and assigning colors.

Additional Customizations

1. Lines & Patterns:
   • Solid lines, hatches, etc., can also be customized.
   • E.g., Assign solid lines to be mapped to a specific AutoCAD line type/setting.
   • Patterns can be similarly mapped for consistency.
2. Save & Apply:
   • Save this export setup for future use, reducing the need to reconfigure each time.
   • Apply these settings to new exports by selecting the customized setup.

Outcome & Review

1. Viewing Custom Export:
   • Open the custom DWG file in AutoCAD.
   • Verify that layers correspond to custom settings (e.g., walls, windows, furniture, etc., named and colored as per setup).
   • Minor discrepancies might appear if every layer/category isn’t thoroughly configured.
2. Advantages:
   • Allows standardization per project/company needs.
   • Provides better control over exported CAD files.

Conclusion

• Benefits: Simplifies consistent exporting, meets project-specific/CAD standards, and improves workflow efficiency.
• Resources: Access more Revit/CAD content on BalkanArchitect’s Patreon and website.
• Further Learning: Check out additional Revit courses and subscribe for more tutorials.