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Forums >> Community >> Newbies >> curious about size (s.f.) of revit projects?
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Joined: Tue, Nov 15, 2005
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Our firm is new to revit (we are setting it up now), and I haven't seen any projects that are over...say 100,000 s.f. Just curious - is there anyone out there that is doing, or has done a project in the 250,000 s.f. range? Starting a high school on revit and wondering how the performance will be with that size building.
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Joined: Wed, Jul 13, 2005
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I would suggest that you maybe consider establishing your site and your building(s) as different projects and linking (Xref in AutoCAD) your site plan to the building project as this will keep your file sizes down and make life a little easier for you.
I am sure someone else, maybe Mr Spot may have some other thoughts but this is something you would definitely want to consider once your projects start to become "large".
Good luck!
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Performance is all relative. We are doing a 200,000 SF 3 story building and it is working just fine. You do need to have your project worksetted in a way that allows for good performance. Worksetted Revit files are replicated database files where the master file (central file) resides on the server and the replicated copies (local files) reside on local workstations to minimize network traffic and allow for built-in redundancy.
The other basics of a modern network also need to be in place. Decent client PC's around 3.0 Ghz with 2MB RAM, gigabit network topology or managed switch to give Revit users higher priority for lower speed networks.
You also need to understand that when some changes are made to a large model that Revit will sometimes think about them for a couple of minutes. Some people perceive this as slow performance, but when you move an exterior wall up a foot or change the level to level height between floors and Revit changes every section, elevation, plan and detail and it takes five minutes don't think of this as slow. What would it take you to make all those changes in a 2D CAD system? I suspect a little more than a few minutes and probably more like a couple of days.
HTH
Tom
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Last year for a competition I designed a high school. It was not quite as large but i was up there. A few of my suggestions would be though, are to be sure to scale down dimensions (how they appear on the prints) and also be sure not to create to many levels while designing (i.e. I ran into problems with my elevations because of lecture halls). Other than that be patient with the new program, it gets easier.
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As people have already said, it all comes to planning and making sure you understand how to setup the worksets appropriately for the workflow and number of users, as well as linked files for multiple buildings and site files.
I'm aware of projects done in revit that are over the 1,000,000ft range and these companies are having success.
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Thanks to each of you for the tips! I think we're good as far as hardware, 10 new Dells delivered mon., and our network is in place. We have 4 offices across the state, all linked to each other. Our previous software was Arris, operating on a Unix platform, in this office, autocad in 2 offices and Arris on PCs in the 4th office. and our civil engineers are on autocad of course. We are all trying to get on the same page! I'm very excited about Revit, couldn't sleep last night thinking of how to do things. So please be patient with me, I will be asking many questions, and I very much aprreciate you all for taking the time to answer and help. I'll try to post a pic of the final project at some point, so you guys can see the results of your efforts, lol!
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If you are going to be working across different office and sharing a central file then there is some more planning that needs to take place. Unless you have 100mps or greater connect speed between the offices saving to central will be very slow if not impractical. You will also have to watch the UNC paths to the central file as well as watching any server to server replication taking place at the OS level.
We are only in a single location so I'm not totally up to speed on all the multi-location issues, but we have members of our Revit Users Group that have run across them and brought up what I said above.
Maybe someone with sucessul multi-locations can add to the discussion.
Tom
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