The "Purge Unused" command in Revit can be used to remove any unused elements from the project. This includes elements that were previously used but are no longer needed, as well as elements that were never used at all.
When you run the "Purge Unused" command, Revit scans the entire project and removes any elements that are not in use. This can include elements such as families, types, materials, and even worksets.
When using fabrication parts (Building Data Content), it can take a long time to run the "Purge Unused" command because these parts can have a large number of elements that need to be checked. Additionally, if there are many nested families or complex systems, the process may take even longer.
There are a few ways to speed up the process of purging unused elements:
- Break the model into smaller parts: This can be done by creating multiple levels or by using worksets.
- Use the "Purge All" command instead of "Purge Unused". This command will remove all unused and unused types, this can be faster than running "Purge Unused" multiple times.
- Use the "Purge All" command on a specific category, such as "Fabrication Parts" or "Fittings"
- Try to use the "Purge Unused" command during off-peak hours, as this can help reduce the load on the computer.
- If possible, increase your computer's memory and processing power to speed up the process.
It's also worth noting that, if you're frequently experiencing slow performance when purging unused elements, it may be worth consulting the Autodesk Revit documentation or contacting Autodesk support for further assistance.
