Revit cable tray elbow

In Revit MEP, cable tray elbows are configured through type properties, including bend radius, vertical/horizontal bend types, and routing preferences, ensuring proper automatic fitting placement.

Setting Up Cable Tray Elbows

1. Use the Correct Cable Tray Type: Always select Cable Tray with Fittings rather than without fittings. This ensures Revit can automatically generate elbows, tees, and crosses when the tray changes direction or elevation ( ).

2. Edit Type Properties: Right-click the cable tray and choose Edit Type. Key settings include:

   • Bend Radius Multiplier: Adjusts the curvature of elbows; larger values create smoother bends.
   • Vertical Inside/Outside Bend: Defines how the tray transitions vertically.
   • Horizontal Elbows: Set the radius for horizontal 45° or 90° bends.
   • Tee, Cross, and Reducer Settings: Configure these if your routing requires intersections or size changes ( ).

3. Elbow Segmentation: In practice, a 45° elbow is modeled using two segments, while a 90° elbow uses three segments. This reflects real-world fabrication and ensures accurate routing ( ).

4. Routing Preferences: Access MEP Settings → Cable Tray Settings to define default angles, offsets, and preferred elbow types. This ensures that when you draw a tray, Revit automatically applies the correct elbow fitting based on your project standards ( ).

5. Loading Fitting Families: Ensure all required elbow families are loaded into the project. Without the correct families, Revit cannot generate elbows automatically ( ).

6. Placement Tips: When drawing cable trays:

   • Start with straight segments.
   • Revit will insert elbows automatically at direction changes if the type and families are correctly configured.
   • Adjust elevation and offsets as needed to avoid clashes with other systems ( ).

Advanced Considerations

• Custom Elbows: For complex routing, you can create custom elbow families or use fabrication parts (available in Revit 2016+), which allow more precise control over angles and segment lengths ( ).
• Troubleshooting: If elbows fail to insert, check that the segments are properly connected and that the fitting families are compatible with the tray type ( ).

By carefully configuring type properties, bend radius, and routing preferences, Revit will automatically generate elbows that match your project requirements, ensuring accurate and efficient cable tray modeling.