GBIM is a set of Revit and Navisworks add-ins for model QA and clash coordination. This guide follows the work the way a BIM coordinator does it: install once, check each model against the project standard, then run the clash loop every week until the models are clean.
The coordination loop
Coordination is a repeated loop on the latest model releases. Many teams run it weekly, around a coordination meeting; monthly runs find problems too late. Each turn of the loop updates the federated model, runs the agreed tests, groups the results, gives every issue an owner and a status, and checks the fixes in the next run.
The GBIM tool that does each step is shown under it. Steps 1 and 6 use Navisworks' own Clash Detective.
Which tool, when
| Host | Tool | What it is for |
|---|---|---|
| Navisworks | Clash Export | Writes the chosen clash tests, with each item's Revit IDs, to a file for Revit. |
| Navisworks | Clash Sync | Live link: the clash you click opens in Revit, boxed and coloured. |
| Navisworks | Element Clashes | Every clash of the selected items in every test; change statuses in one step. |
| Navisworks | Status Update | Reads returned response sheets or a status table and updates the clash statuses. |
| Navisworks | Clash Map | Zones (level and grid bay) coloured red, yellow and green by clash count. |
| Navisworks | Clash Report | One Clash Response Sheet (.xlsx) per test, one folder per party. |
| Revit | Clash Import | A docked clash browser: zoom, 3D views per clash or group, write a parameter. |
| Revit | Clash Sync | Follows Navisworks in one section-boxed 3D view. |
| Revit | Flag | Red flags at clicked points, to find the spot again in Navisworks. |
| Revit | Health Check, Warnings, Views & Sheets, Links & Coords | Read-only model health with a score and history. |
| Revit | Naming, Parameters, Colour by Parameter, Safe Cleanup, Rules | Standards against your rules workbook, safe fixes only. |
| Revit | GUID Audit | Shared parameters with the wrong GUID, name or data type. |
| Revit | Link ID, Plan Box | Copy IDs from links; section box from a plan area. |
| Revit | Export | Sheets to PDF and DWG, 3D views to IFC and NWC, in one run. |
Safety principles
- Your model is never saved. No GBIM tool saves, syncs or closes a Revit or Navisworks file.
- Changes are yours to confirm. Tools that change the model (rename, cleanup, views, statuses, flags) show what will change first and apply it as one Undo step.
- No file is overwritten. Reports, sheets and rule workbooks get a new name or a new version; old rule files move to a history folder.
- Nothing is guessed. When a match is doubtful (an ID that does not agree, a name used twice), the row is listed as a problem and skipped.