Automate RVT to NWC Export with Dynamo for Efficient BIM

Automating the export of RVT (Revit project files) to NWC (Navisworks Cache) format can significantly streamline project workflows, reduce manual errors, and improve team collaboration. Using Revit Dynamo, a visual programming tool, users can create custom scripts to automate this process seamlessly. In this article, we will explore how to set up an **automatic RVT to NWC export** using Dynamo, making your BIM project management more efficient.

Harnessing Dynamo for Automated RVT to NWC Export

Revit Dynamo offers a flexible environment for creating custom workflows, including automating repetitive file export tasks. By leveraging the Dynamo platform, users can design scripts that trigger the export process based on specific events—such as project completion, daily updates, or when files are saved. This automation reduces the need for manual intervention, ensuring that the latest project data is always available in Navisworks for review or coordination.

Setting Up an Automated Export Workflow

To automate the export of RVT files to NWC format, follow these crucial steps in Dynamo:

  • Identify the Trigger Event: Define when the export should occur—upon save, at specific time intervals, or after specific project milestones.
  • Use Revit API Nodes: Access Revit’s API through Dynamo to retrieve current project data and file paths.
  • Implement Export Commands: Utilize Dynamo Python scripts or built-in nodes to command Revit to perform the **export to NWC** function.
  • Set Destination Paths: Automate directory naming conventions and ensure files are saved to appropriate project folders.
  • Schedule Automation: For continuous operation, integrate Dynamo scripts with external task schedulers or use Revit’s API event listeners for real-time automation.

By carefully designing this workflow, your team can achieve a hands-free export process that ensures your Navisworks models are always up-to-date, facilitating smoother coordination and clash detection.

Best Practices and Troubleshooting

When implementing an automated RVT to NWC export via Dynamo, keep in mind the following best practices:

  • Maintain Version Compatibility: Ensure Dynamo, Revit, and Navisworks are compatible with your scripts and plugins.
  • Test in a Controlled Environment: Validate your scripts on sample files before deploying them on active projects.
  • Implement Error Handling: Incorporate error detection and notification mechanisms within your Dynamo scripts to catch and report failures.
  • Regular Updates: Keep your Dynamo scripts and Revit plugins updated to align with software updates and to leverage improvements.

Despite the robustness of Dynamo, troubleshooting common issues—such as failed exports or path errors—requires checking script logic, permissions, and network drives. Proper testing and incremental deployment can streamline the adoption of this automation process.

Conclusion

Automating RVT to NWC export through Dynamo empowers BIM teams to save time, reduce manual errors, and ensure timely data availability in Navisworks. By setting up a well-structured workflow that triggers exports automatically, projects can benefit from improved coordination and efficiency. Proper planning, testing, and maintenance of these scripts will help you harness the full potential of Dynamo automation in your BIM processes.