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Manage CAD Links wroksets between central models

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Nachricht 1 von 13
BEE_Design
1314 Aufrufe, 12 Antworten

Manage CAD Links wroksets between central models

Hi community,

 

I have linked CAD into seperate worksets. However my ARC.rvt (central file) is getting very slow, possibly from the CAD links.

 

Is it possible to separate the CAD worksets into its own central file; CADLINK.rvt (central model).

 

Then link CADLINK.rvt into ARC.rvt

 

I tried but it doesnt show the CAD links in the ARC.rvt.

 

Is it possible? Or am I asking too much of Revit?

 

Best,

 

SY

Chasing BIM Architect ideal in HK with GeForce GTX 660 Ti, Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz, 16.00 GB RAM, Mircrosoft Windows 10 Home.
12 ANTWORTEN 12
Nachricht 2 von 13
micphillips
als Antwort auf: BEE_Design

Your best bet to accomplishing this would be to create a view that shows only the cad items. Open a new project within the same instance of revit. You should be able to copy most items from one project to the other. From there, verify you have all required items. Save the new file as CADLINK.rvt. Create all of the worksets that you want and apply the elements to them. Save the file and you should then be able to link the new project into the old one. You can then turn on and off any worksets that you wish by going into your visability settings > RVT Links > click "by host view" next to CADLINK.rvt. Change the setting to custom and click the worksets tab. From there you can turn on or off any worksets within that project.

Nachricht 3 von 13
BEE_Design
als Antwort auf: micphillips

Hi micphilips,

Thanks for you response.

Instead I opened a detached central model of ARC.rvt and saved it as CADLINK.rvt. Then deleted the CAD link worksets from ARC.rvt. I then imported CADLINK.rvt, but no cad ife is visible in the link. Am I throng?

Thanks again

Edited by request
Discussion_Admin

Chasing BIM Architect ideal in HK with GeForce GTX 660 Ti, Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz, 16.00 GB RAM, Mircrosoft Windows 10 Home.
Nachricht 4 von 13
micphillips
als Antwort auf: BEE_Design

After importing, when you open your visability and graphics settings dialog box, and click the Revit Links tab, do you see a display settings column? It should be the last column visible. I've attached a screenshot for your reference.

Nachricht 5 von 13
ToanDN
als Antwort auf: BEE_Design

Capture.PNG

 

Somehow I doubt that putting the CAD link to another Revit file and link it to the master Revit file would make any difference.  You are still having the same CAD data as before + the overhead data from another Revit link file.

Nachricht 6 von 13
micphillips
als Antwort auf: ToanDN

I believe we may be on different pages. I am recommending that you pull all of the linked CAD data into a new revit project. You would then link the revit project to your central file. This would allow you to be able to turn things on and off as required. This would allow you to turn everything off that you don't need at that specific time in order to maximum productivity.

Nachricht 7 von 13
ToanDN
als Antwort auf: micphillips


@micphillips wrote:

I believe we may be on different pages. I am recommending that you pull all of the linked CAD data into a new revit project. You would then link the revit project to your central file. This would allow you to be able to turn things on and off as required. This would allow you to turn everything off that you don't need at that specific time in order to maximum productivity.


My screenshot shows just that.

 

But I am questioning the advantages of putting the CAD file into another Revit file, then link the Revit file to the central file, just to be able to turn things on and off?  Can you just turn things on and off if you link the CAD files directly in the central file?  It seems too many extra unnecessary steps to accomplish the same thing.

Nachricht 8 von 13
micphillips
als Antwort auf: ToanDN

How many CAD drawings are you trying to link, and for what purpose? If you have only say a floor plan you're trying to link, then just linking the CAD itself (like you have) is just fine.

 

But if you have say a floor plan for a classroom, and separate floor plan for an elevated auditorium, and say another floor plan for any other areas that may not be typical. Then it would be useful to pull the CAD into it's own Revit model. This would allow you to turn off just the auditorium while working on the classrooms. You could link all the CAD files like you have the one linked in your screenshot and just have view templates applied to turn it on and off when it's needed, but the abundance of line work will slow your machine down quite substantially.

 

If you're only linking one DWG file, than what you have is completely fine. You could apply view templates to allow the visibility of the CAD when it's needed.

Nachricht 9 von 13
ToanDN
als Antwort auf: micphillips

I sometime have to to link 20-30 CAD files into a Revit central file.  It really does not matter how many files.  You can turn on the only one you need for a particular View or View Template, and turn off the rest.  It is exactly the same process as turning on and turning off the Revit links.  I don't get it.

 

Capture.PNG

Nachricht 10 von 13
BEE_Design
als Antwort auf: ToanDN

Thanks ToanDN,

This is really the root of the question. I read somewhere (lets say for the case of this case CADlink.rvt contains CAD, and ARC.rvt contains the modelling) that the CAD inside CADlink.rvt will only reload the CAD links when opened independently. When opening ARC.rvt, the CADlink.rvt will only show the last loaded CAD and will not reload. Hmm.. I guess if this does speed up the file then it only speeds up opening and syncing, not the actual working within the file as we still have that overhead from CADlink.rvt

I see that in your image that you are able to see the CAD from the linked Revit project. I have been unable to replicate this. I have turned on all visibility and opened all worksets in both ARC.rvt and CADlink.rvt. At least i know its possible. I have about 20-30 CAD files.

Thanks again ToanDN,

Best

SY
Chasing BIM Architect ideal in HK with GeForce GTX 660 Ti, Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz, 16.00 GB RAM, Mircrosoft Windows 10 Home.
Nachricht 11 von 13
BEE_Design
als Antwort auf: ToanDN

ToanDN,

My CAD files are up to 9mb each, is this the reason for slow performance?

Best,

SY
Chasing BIM Architect ideal in HK with GeForce GTX 660 Ti, Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz, 16.00 GB RAM, Mircrosoft Windows 10 Home.
Nachricht 12 von 13
ToanDN
als Antwort auf: BEE_Design

@BEE_Design

 

Below are things I would do if I absolutely need to bring CAD into a Revit project:

 

  1. Setup and assign Layers correctly.  Clean and purge CAD files as much as I can.
  2. Determine what the CAD files are for.  This is the most imprtant in my opinion.
     
    • If they are for references only then I create a View dedicated for each CAD link, and link the CAD file to that View with Current View Only box checked.  It means CAD is brought in as detail lines instead of model lines and it should be lighter, supposedly.  Putting it in a separate workset is unnecessary in this scenario.
    • If they are to present actual geometry in the project then it has to be linked in as model lines, so uncheck Current View Only box when linking.  A separate view is still recommended but not a must.  Optionally you can put them in a separate workset(s) but it is not really necessary because you can still turn them off under Import Categories.  Worksets give you a little more advantage with the option to be unloaded globally.
    • For both scenario, turn off visibility for any irrelevant layers of the CAD files

 

P/S"  you should mark @micphillips answer as a solution.  He answered your initial question correctly.  I only provided a little more clarification.

Nachricht 13 von 13
micphillips
als Antwort auf: ToanDN

@ToanDN

 

Thank you for the clarification. By far the most important step to reduce the file size and improve performance is to purge the CAD files before bringing them in. A lot of new Revit users link/import various CAD drawings without purging out everything that is not required, which slows the model down substantially.

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