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Revit group error

6 ANTWORTEN 6
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Nachricht 1 von 7
emanuela.agent
775 Aufrufe, 6 Antworten

Revit group error

Hello,

 

We've been having some issues with groups in Revit. We have made a group for an area of the facade and, for some reason, Revit keeps adding a vertical grid whenever we move or copy the group. If we try to delete the grid (in group edit mode), we get this error message:

REVIT ERROR.png

 

 

Any idea as to why this might be happening and what I can do?

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Nachricht 2 von 7
barthbradley
als Antwort auf: emanuela.agent

Curtain Walls in Group?

Nachricht 3 von 7
emanuela.agent
als Antwort auf: barthbradley

Yes. We have certain areas that are the same on different floors. It doesn't make sense to make one single curtain wall in our case, so we opted for groups. Why?

Nachricht 4 von 7
Avaris.
als Antwort auf: emanuela.agent

Some system elements like curtain walls and stairs do behave strange in model groups. We always try to avoid them.

Nachricht 5 von 7
emanuela.agent
als Antwort auf: Avaris.

I see, so it's a question of Revit not liking this :)) It's a lot easier when starting a project to work with groups, as they can be updated very quickly. I have noticed that they do cause a few errors and we need to handle them with care. But I don't know of a good alternative. Some elements in the project are repetitive, so having groups is the logical approach to avoid having to update the same thing in 20 different places. 

Nachricht 6 von 7
barthbradley
als Antwort auf: emanuela.agent

You shouldn't use attached relationships in groups.  Modify your group to remove Top Constraints Level for your Walls. Instead of constraining to Level, give the Walls an Unconnected Height from their Base Constraint Level. 

Nachricht 7 von 7
Avaris.
als Antwort auf: emanuela.agent

That in itself is smart thinking. As @barthbradley Revit does not like to have elements in groups that have relationships with elements outside the group. Nested system families like stairs+railing or curtainwalls are among the more complex ones that we try to avoid putting in a group. In some cases Dynamo offers also possibilities to generate multiple 'groups' without them being actually a Revit group.

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