Converting DWG files to Revit can enhance your building information modeling (BIM) projects by integrating existing designs into Revit’s environment. This process allows you to utilize detailed CAD drawings within a more dynamic framework. Follow the steps below to seamlessly convert your DWG files into Revit.
Understanding DWG and Revit Interaction
DWG is a file format used by various CAD software, most notably AutoCAD. Revit, on the other hand, is tailored for BIM, which encompasses a broader range of project phases through integrated modeling and documentation. Understanding how these two systems can communicate will ease the conversion process.
Preparing the DWG File
Clean Up Your DWG: Before importing into Revit, open your DWG in AutoCAD. Remove unnecessary layers, geometry, and annotations to streamline the import process. This helps prevent clutter in your Revit project.
Set the Units: Ensure the drawing units in AutoCAD are consistent with Revit. Check and adjust the measurement units, as discrepancies can lead to scale issues once imported.
- Save Your File: Save your cleaned-up DWG file using a compatible version. Revit supports multiple DWG formats, with AutoCAD 2013 being a generally reliable version.
Importing the DWG File into Revit
Open Revit: Launch Revit and either open an existing project or start a new one.
Navigating to Import Options:
- Click on the Insert tab on the toolbar.
- Select the Import CAD function, which allows you to bring in CAD files.
Choose Your File:
- In the dialog that appears, locate your DWG file and select it.
- Before finalizing the import, ensure the “Current View Only” option is unchecked if you want the file available in multiple views.
Adjust Scaling:
- Once the file is loaded, Revit will display it according to the drawing’s original scale. However, you can adjust scaling options within the import settings to fit your project requirements.
- Positioning the DWG:
- Position the DWG accurately using the "Select" tool. You may need to move, rotate, or align the imported content to ensure it integrates perfectly with your Revit model layout.
Editing and Utilizing the Imported DWG
Trace Over with Revit Elements: After importing the DWG, you may want to trace over critical elements using Revit’s architectural tools. This can transform 2D lines into 3D model components effectively.
Adjust Visibility Settings: Manage the visibility settings of the imported DWG through the visibility/graphics menu (shortcut: VG). You can control which layers of the DWG are visible in your Revit project.
- Using the DWG for Reference: Utilize the imported file as a reference point as you build your model. You can create sections, elevations, and various parts of your Revit project based on the existing DWG geometry.
Exporting from Revit to DWG (If Necessary)
In some situations, you may wish to convert a Revit project back to DWG. Follow these steps:
- Select the View to Export: Choose the specific view or sheet you want to export.
- File Tab Navigation: Go to the File tab, select Export, and then choose CAD Formats to initiate the DWG export process.
- Set Export Options: Configure the export settings according to your needs, such as choosing the version of DWG and file naming preferences.
- Finalizing the Export: Execute the export and review the DWG file to ensure it meets your expectations.
Frequently Asked Questions
1. Can I import multiple DWG files into a single Revit project?
Yes, Revit allows for the import of multiple DWG files. You can insert them one at a time and position each accordingly without limitation on the number of files.
2. What should I do if the imported DWG file doesn’t align with my model?
If misalignment occurs, use the Move or Align tools in Revit to reposition the DWG file precisely within your project space, ensuring it integrates correctly with your architectural elements.
3. Are there any formatting issues when working with complex DWG files?
Complex DWG files with intricate layers or non-standard geometries can cause issues during import. It’s advisable to simplify the DWG as much as possible and ensure it’s cleaned up before the import to minimize potential problems.
