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Solution for heavy models

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Nachricht 1 von 9
Marcus.Isacsson
3214 Aufrufe, 8 Antworten

Solution for heavy models

Hi fellas!

Does anyone know of a plugin or way to tell what's making a Revit model 'heavy'?
Some days ago our model all of a sudden started to behave "laggy".

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Nachricht 2 von 9
Sahay_R
als Antwort auf: Marcus.Isacsson

How big of a model? Anything above 300MB should be broken up into parts and linked.


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Nachricht 3 von 9
kadmonkee
als Antwort auf: Marcus.Isacsson

no plug-ins

 

it is a matter of what is modeled and how it is modeled

the amount and types of families, how the families are created (level of Detail)

 

excessive errors or warning left unanswered

 

Linked files-Revit or AutoCAD

importing AutoCAD files then exploding the layers.

excessive views (sections for coordination) 

 

also could be hardware or network infrastrucure. 






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Nachricht 4 von 9
andybrack
als Antwort auf: kadmonkee

Yeah, start with the linked files.  Ask your team if somebody linked in new CAD files or Revit models. That could explain where a sudden change in behavior occurred, particularly if the CAD file is large (1-2MB). Also, in projects where CAD is mixed with the BIM model **gasp** there is a tendency to not clean out files that are no longer useful.  Some simple housecleaning will help that.

 

Sincerely,

 

Andy Brack

Nachricht 5 von 9
Marcus.Isacsson
als Antwort auf: Sahay_R


@rsahayUZMK9 wrote:

How big of a model? Anything above 300MB should be broken up into parts and linked.


The file is 112 mb right now. Nice tip though, will keep in mind that 300 mb is a good limit.
Any way to calculate or anticipate the model size in early stages?

Nachricht 6 von 9
Marcus.Isacsson
als Antwort auf: kadmonkee


@kadmonkee wrote:

no plug-ins

 

it is a matter of what is modeled and how it is modeled

the amount and types of families, how the families are created (level of Detail)

 

excessive errors or warning left unanswered

 

Linked files-Revit or AutoCAD

importing AutoCAD files then exploding the layers.

excessive views (sections for coordination) 

 

also could be hardware or network infrastrucure. 


Yeah, I think that some of the families might've made it slower. We've modeled a bunch of wooden ribs that repeats along the facade.
Each family has a bunch of parameters (height, distance between them and so on).

I do think that there's a bunch of useful plug-ins though, a while ago I had use of this one:
Family Size reporter - Found some messed up over-detailed families for me
https://apps.autodesk.com/RVT/en/Detail/Index?id=3536917954730046399&appLang=en&os=Win64

Nachricht 7 von 9
Sahay_R
als Antwort auf: Marcus.Isacsson

Large numbers of 3D furniture families that have a lot of swoopy-curvies, void geometry, are poison for a model. Revit does not like CAD files, especially if they are imported.


Rina Sahay
Autodesk Expert Elite
Revit Architecture Certified Professional

If you find my post interesting, feel free to give a Kudo.
If it solves your problem, please click Accept to enhance the Forum.
Nachricht 8 von 9
barthbradley
als Antwort auf: Marcus.Isacsson

CAD content is the biggest hog, IME. Strip it out wherever possible and you'll be amazed.  

Nachricht 9 von 9
ToanDN
als Antwort auf: Marcus.Isacsson


@Sweco3600 wrote:

@rsahayUZMK9 wrote:

How big of a model? Anything above 300MB should be broken up into parts and linked.


The file is 112 mb right now. Nice tip though, will keep in mind that 300 mb is a good limit.
Any way to calculate or anticipate the model size in early stages?


It also depends on your hardware.  If you workstations are not entirely mediocre then you can certain handle files much larger than 300 MB.  It sounds like a threshold guideline from 5 years ago.

 

The more important point when breaking up a model is where to break it logically rather than just looking at the file sizes.  For example if your project is a shell-core then you can certainly break it to a shell file and a core file.

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