- 1
Open the validator
Nexaura Precast tab → Marks panel → Check Assembly Names. The window opens as Assembly Mark Validator, and its subtitle reads “Checks Assembly Type Names and Sheet Numbers against the Main Element Mark”.
- 2
Teach it your mark format
In Mark Format, type one example of a correct mark and click Apply Format. The tool reads it as Project, Level, Element Type and Sequence and shows the resulting pattern. The built-in format DC-1-EI32-100 (and DC-1-EI32A-100) is always accepted as well.
Example: DC-1-EI32-100 → Pattern LL-D-LLDD-DDD - 3
Pick categories
Tick the categories to check. Structural Columns is ticked by default; Structural Framing, Foundations, Walls, Floors, Generic Models, Roofs, Ceilings, Stairs and Railings are available. The tool never scans the whole model.
- 4
Validate
Click Validate. Progress shows as “Validating 12 / 480 assemblies…” and the window stays responsive. Rows come back green (Valid), red (Name Mismatch, fixable) or yellow (needs a person: Duplicate Mark, No Sheet, Multiple Sheets, Mark Naming Issue and others). Hover a row for the reason.
- 5
Filter and select
Use the Status filter, which shows live counts such as “Name Mismatch (12)”, or the Search box. Click Select All Invalid to select only the rows that can really be renamed.
- 6
Rename Selected
Click Rename Selected. The Rename Report opens with Old/New Assembly Name, Old/New Sheet Number, Result and Reason, plus Processed / Successful / Skipped / Failed counters. The whole batch is one Revit undo step named “Assembly Mark Validator - Rename”. Renamed rows are re-validated in place.
Good to know
- Assemblies that share one type follow the lowest mark: DC-1-EI32-100, -101 and -102 all expect the name DC-1-EI32-100.
- If the Duplicate Marks button turns red, open it to see which elements share a mark, select them in Revit, or export the list to Excel or CSV.
- Elements owned by another user in a workshared model are reported as SKIPPED; the rest of the batch continues.