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Joined: Thu, Jul 20, 2006
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I have a brand new computer and am an experienced user. Simple things like adding a roof fascia sweep is taking 2-3 minutes per side and I have had much more complex files than this. I have purged and saved as to create a much smaller file. Even editing a wall to attch to a roof takes a long time. Thanks for any help.
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Joined: Fri, Feb 10, 2006
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here is some info on Revit performance post previously by other users that may be of help Problems with Revit Being Slow 1 Not being there to look at your file it is hard to diagnose. As I have stated in previous posts, it is not the size of the project, it is how you modeled it that matters the most. Are you using groups? If so how? Do all the hosts required for grouped objects exist in the group? What is in 3D that doesn't need to be? Do you have toilets for example in 3D? Why? Is any of the site work included in the main model? Site need to be a seperate file with the building linked in. How are your worksets sturctured? Do you understand the replicated database topology that Revit employs?The list goes on and on.I can tell you that I have a 300,000 SF project underway that is an educational building and simply have no problems with it. The file size is about 40 meg and we are in the DD phase so I have most elements in the model. It will grow with some detailing, but not by much.Your re-seller should be able to help you out. If not, then find a different one. Be vocal with them and tell them that just selling a Revit license is only the first step of their job. They need to be sure you are fully trained and aware of the techniques that need to be employed on your project types.Revit is a great piece of software, but as it has been said by others "complex databases don't happen by accident".Groups in Revit are a major area of failure. It is Revit's fault that they are not as reliable as they should be. It has been a wishlist item for many years now to get them fixed. They may indeed prove to be the root cause of all of your troubles. If you are editing the group and there are items in the group that belong to many different worksets I can see how Revit would choke and crash. This anwser was previously posted by Tom Dorner Problems with Revit Being Slow 2 It is not the size of the project that matters, it is how it is modeled that makes the difference. I have seen very small projects that are over-contrained with tons of in-place families or poorly contructed families make Revit look like a useless slow pig of a program. And then I have seen models we have of a 300,000 SF three story involved building that simply are not a problem.The biggest things to look at are groups. These can be a Revit problem, so make sure you do not see a lot of re-definition taking place. Another spot can be families. In-place families should simply be avoided. Other families should be created to not be "universal". I see people trying to make a door family that can be every type of door there is and the family size ballons to 2 meg when there should be more specific families to cover the doors that are each 50-100K.Site work should be done in a seperate file and the main Revit model linked into it.Any AutoCAD files should be "linked" in not "imported". And then only if they are needed. I rarely keep ACAD stuff hanging around. If I need a detail or something simply make a Revit one.Large project will require worksets.Modeling everything in 3D is not required and not a good idea. Do you have your standing seam roof modeled? I would never model the standing seams, simply use a surface pattern and a JPEG image if you need to render. What other things are in 3D that don't need to be? Are all of your toilets for example in 3D? I use 2D for toilets unless you plan to render the bathrooms. Better yet I use 2.5D which still wrok in both plan and elevation yet don't have hte 3D overhead.What about planting? If you are rendering using the Accustudio plants and not RPC's then you are going to have trouble.A 61,000 SF project is not very big for Revit to handle. I would take a look at how you are putting it together rather than to hardware problems.If you have not attended Autodesk University, it is where this type of information is presented. If you are a subscription customer, last years AU2005 sessions are out there for you to view that talk about some of this. This anwser was previously posted by Tom Dorner HTH
Edited on: Tue, Jan 2, 2007 at 8:31:03 AM
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best regards, coreed,aia bmpArchitects,Inc. "Revit has to be implemented, Not installed." Long Live Revit |
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