Best Practices: Filter and Group Clashes

You can search and filter aggregated model views, drill down into specific clash interferences, set clash tolerances, and automatically group clashes, architects, engineers, and BIM managers can collaborate to clear clashes, assign issues, solve small problems, and prioritize larger problems for an upcoming coordination meeting.

Filter for specific clashes in the viewer to provide in-depth filtering and analysis. In the Model browser, use the basic and advanced object filtering to select specific model objects to investigate further. Filtering in the Model browser also filters out clashes associated to these objects.

In the Clashes panel, use the filter tools.

Group clashes

Clash groups make it easy to assign issues by discipline or trade.

Group clashes by:

• Model objects
• Object property
• System
• Type
• Layer names

Systems, types, and layers are typically used in CAD to group objects with related function or location. They are defined in the design software that the models are created in, therefore the options available depend on the model file type. It may be useful to view clashes using these groupings, as related objects are likely to be affected by the same clashes.

Apply a clash tolerance that filters out clashes with an acceptable amount of overlap (in mm or inches). Set the tolerance filter above, below, or between values to mark known installation tolerances as “not an issue” or focus on high impact clashes. The clash tolerance is a global setting that is applied after clash detection is run.

For details, see Filter and Investigate Clashes.