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Forums >> Revit Building >> Technical Support >> Revit 2010 Activity Codes and Navisworks 2010
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Ok so I have a 62,000 sf elementary school modeled in 2010. Linked in MEP, structure…the works. Now the job is out to Bid and I am trying to coordinate with the CM; who uses Navisworks. Some of the need of a CM to use BIM is its approach to scheduling. Within Revit under the properties of a material in the identity tab I have created a custom parameter called activity code. I need Revit and Navisworks to communicate with each other this activity code so that in Navisworks the CM can schedule when steel is erected, brick, spray foam ect. It is no use to just say here is a wall; when in fact there are several trades that must coordinate in that exterior wall. I have been told by several colleges and other BIM managers that Navisworks will not be able to use this identity data. The only way is to break apart a wall that has several layers (GWB, metal studs, spray foam, sheathing, brick) and actually make it 5 different walls; then export each one into Navisworks. This is not how Revit is intended to work…has anyone been able to get these two programs to talk to each other and schedule a timeline as Autodesk promises? I could use some expert help.
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Why are you doing this, is it in your contract? Typically, the Architect's model does not meet the needs for scheduling or sequencing unless you are doing an IPD and the CM is imputing during documentation. The CM has to either create his own model or modify the architects model on a BID / BUILD project.
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Not exactly in the contract. In the contract the filed subs must coordinate in 3D their work prior to construction. They will get the outline from the exported Bid Revit model. We have a good relationship with our CM and this is a public works project. The CM is praising to the client how much money we have saved in running clash detection prior to construction in Navisworks. We would like to do the same with the scheduling and timeline component. The problem is that we do not give our Revit files to our consultants. I just need to export the supplementary conditions so they can progress but I do not want to explode each wall.
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well for one you can't "explode" a wall in Revit and your collegues are correct, you will need to model the wall layers seperately.
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Very true and thank you. Explode is my word for making a wall that is one five seperate walls. Maybe the fact that this is a new account has people thinking i am a rookie. I have been using this program for a very long time.
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Ok cool, well like WWHub mention... Contractors models and architectural models are very different. I have done a lot of both. When dealing with design based modeling I take the approach that is most parametrically stable, this gives design decision greater ease of modification. When dealing with 5D construction I model like its built, this makes the data within your model much more valuable to programs such as Navisworks, Innovaya, QTO and Vico. Each has its benefits and its downfalls...
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Ok so my only option is to take an exterior wall that has several layers and make them several walls. And the export out in 3-D each wall separately so that Navisworks can use the coordinates of each wall a schedule on a time line appropriately. This is not a practical solution in how Revit is designed to work. I guess as a BIM manager I should think about what the final intent of model is used for. I was assuming that I could use the I (information) of BIM for scheduling in Navisworks. Why buy a $10,000 software that claims to do all these wonderful things if you have to alter the way a model is set up from day one and in a fashion that is not indicative to how Revit is designed to work? Thank you both for your help.
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I believe Navisworks imports CAD 3D - correct? And in CAD, THe individual elements of the wall will be seperate.
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