When exporting a 2D view to DWG format in Revit, the families are broken down into individual line segments in AutoCAD rather than exported as blocks. I’m already aware of the EDER-Tool plugin, which can enhance the export process, but I’m interested in exploring other methods such as Dynamo, Revit API, or an alternative plugin.
Any suggestions would be appreciated.
2D representation of RVT family
DWG export
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Hello @p_wehbi
thank you for your question!
I understand the challenge you’re facing when exporting 2D views from Revit to DWG format, where families are being broken down into individual line segments instead of being exported as blocks.
While this is the German forum, I will do my best to assist you. When exporting from Revit, one approach you could explore is using the “Group by Family” option in the export settings. This can sometimes help maintain the family structure as blocks in DWG. Additionally, tools like Dynamo or custom scripts with the Revit API could be used to group the line segments into blocks during or after the export. Plugins such as the EDER-Tool, which you mentioned, or similar ones can also enhance this process, depending on your specific needs.If you have already tried these steps and are still encountering issues, let me know, and I will try to assist further.
I hope this helps!
Best regards,
Sara
first sorry for my english
but you have build the familiy wrong
if the family is build correct it will export as a block
Revit familiy
Autocad block
The problem is the 2D symbol of the installation plan
This must be a detail element of the family
and build from model lines
then load in the main family
Then it will be exported as an autocad block
Example
But Revit builds a seperate block for every instance
so it is not possible toi count them cause they ghave diffrent block names
greetings andreas
Hi @a_machek
The disadvantage of this method is that the 2D representation of the symbolic lines is included in the 3D geometry.
As you know, electrical elements are typically represented in Revit with symbolic geometry that is much larger than their actual physical size. These symbols are purely representative and do not reflect the real dimensions of the elements. As a result, this approach may lead to numerous unreliable clashes that are technically incorrect.
One potential solution is to turn off this subcategory in the 3D view before exporting to IFC or Navisworks. However, keep in mind that Revit's internal clash detection tool will still register clashes if these symbolic lines intersect with other objects.
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Mahmoud Zeidan
BIM Manager / Mechanical Engineer
Yep correct
We split all electrical elements to 2D and 3D an 3D Collision
So that we could correct export it to Navisworks for collision check
Bit i think the question was not the collison it was how to build the familiy so that it will exported as a block
Greetings Andreas
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