Revit Fabrication 2026.2 Changes!
✅ Changed the behavior of assemblies that contain fabrication parts to always be unique,
even when they match. (
LOL)
✅ Fixed an issue that caused instability when saving a model that is missing a duct pressure drop calculator.
You can find all Revit 2026.2
changes here.
MEP API: Resetting Fabrication Assembly Types
In Revit 2026.2, a change was made to how FabricationPart elements are organized within assembly types.
Originally, in Revit 2026 RTM, multiple fabrication parts could share the same assembly type based on the similarity of geometry and transformation. However, based on user feedback, the behavior has been reverted: each FabricationPart now has its own unique assembly type, as it was in previous versions.
To support this change, a new method has been introduced:
FabricationPartType.ResetAssemblyTypes(Document doc)
This method allows you to manually reset all assembly type definitions for fabrication parts in your model. Use this method during migration workflows or when consistency across fabrication elements is critical.
If you don't like
quantities, and/or you like it when 100
identical coil connections are identified differently, you will like this reverted change.
If you're like me, nothing has changed because...
Assemblies are a mess anyway.
Use parameters. It's all just "some portion of some model".
This is also true...
Way too much 'tail wagging dogs' rather than 'dogs wagging tails' in our industry.
Time to fight the cause and educate the uneducated IMO!!!!!
Unfortunately, neither Autodesk, nor many of the people in our industry who have their ear know what they're doing anymore.
"Assemblies. You keep on using that word. I do not think it means what you think it means."
-Inigo MontoyaIt IS unsettling. When young professionals and/or new users are presented with bad "features" and process without proper mentorship, they're easily convinced that this is "the way".
