Grouping Clashes in Clash Detective (6:01 min)

Try it: Grouping Clashes in Clash Detective  

Now that the clashes have been created what do you do with them? You want to be able to understand the clash in context and assign them to the people who can correct the situation. It helps to clean up the views and then group clashes that can be assigned to specific disciplines. 

  1.  In Navisworks Manage , open the Navisworks File Set SMALL_HOSPITAL_COMBINED-Grouping.nwf.  

    Cleaning up the view

  2. First, we are going to clean up the view a bit more. If the grid is displaying in the view, in the View tab > Grids and Levels panel, toggle off Show Grid. 
  3. We have already turned off the architectural model, you can also hide individual elements in the models either through the selection tree or by clicking on an element and then, in the Home tab > Visibility panel, click Hide or right-click and hide. For example, we don’t need to see the structural floors in our view at this time. Select one of the floors, right-click and select Hide. 
  4. Select one of the lighting devices. You can see the entire tree display in the Selection Tree. Select the top level of Lighting Devices, right-click and select Hide (or type Ctrl-H). 
  5. In the Selection Tree, select Electrical Fixtures. In the Home tab, Visibility panel, click Hide. 
  6. If you want any of these items back on then, select them in the Selection Tree and click Hide again. This is an on/off toggle.

    Grouping Clashes

  7. Open the Clash Detective and select the Results tab. If you have a lot of parts in one area they still appear as separate clashes. We want to add some clashes that are related to each other to groups. 
  8. Select Clash 7, notice that not only is the select pipe clashing but also the pipe fitting. Rotate around to see the pipe.
  9. When you find a good view that shows both the sinks and the connected sanitary piping, In Clash Detective, in the Display Settings panel, set the Viewpoint to Manual so the view won’t change when you select another clash.
  10. Hold down Shift and click until you see the entire pipe system selected.
  11. Hold down Ctrl and select both nearby beams.
  12. Expand Filter by Selection and select Inclusive. Most of the clashes display because either the selected beams OR the select pipes are included in a clash. Change the Filter to Exclusive. Now, only the clashes where the pipe system cross the two beams is selected. These are the clashes we want to group because they all impact the same part of the sanitary system.
  13. In Clash Detective, Click New Group. Name the new group 001 Sanitary vs Beam.
  14. Select and drag the three clashes into the Clash group.
  15. Change back to filter none. select the three clashes – 3, 7, and 15.
  16. Select clash 1 and zoom in on the two pipes where they run through the beam. Select both pipes and set the Filter to Exclusive. Create a new group named 002 Pipes vs Beam. Drag the two clashes into the group.
  17. Set the Filter to None.
  18. Change the Viewpoint to Auto-update. Select Clash 1 and notice that there are two pipes going through the beam.
  19. Select the beam and change the Filter to Inclusive. The other clash is displayed in the list.
  20. Create another Group, name it 002 Water vs Beam and drag the two clashes into this group.
  21. Set the Filter back to None. As you have time, continue to group other clashes that make more sense to show in the same clash group.Â