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Forums >> General Discussion >> Revit Project Management >> Help! 10 Meg Revit 2008 project has slowed to a crawl!
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Joined: Tue, Jan 6, 2004
367 Posts
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I have had 40 meg projects on this same computer with no problem. Suddenly, in the middle of finishing the reflected ceiling plan, this 10 meg project has become insanely slow. I have rebooted, purged unused, saved under a different name, etc. with no improvement. The great Revit phone support with real Architects who really knew their stuff is long gone. My local reseller is no help. He claims that he can call the same guys and get the answer for me, but I have waited two days with no response. Help! I am the only Revit user in the firm, we are thinking about switching more seats to Revit, but this really hurts!
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Joined: Tue, May 16, 2006
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I don't know if we can help you without having your project and knowing what you did. But I do have some suggestions of what you can try to solve your problem. 1. Try just deleting the lights from your ceilings. (Did you array or otherwise group these? ) 2. Try deleting the ceilings and see if that really is your problem. 3. Restore an earlier backup that did not have the problem and try to recreate it by adding your ceilings / lights in the smae manner. If you do have to go to an earlier backup and have done other work that you don't want to lose, you can have both "projects" open and copy from one to the other and insert same place. GOOD LUCK & Let us know if you discover what the problem was so we can all learn.
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Joined: Tue, Jan 6, 2004
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I simply copied 3D troffers from grid to grid. Same with 3D supply/return grilles. I have two ceiling families, one is 2x4 lay-in and one is gyp bd. The lights on the gyp bd are surface mtd. This is a small school project of 30,000 SF. There is very little of the memory hog items in it. No site, no trees, no 3D modeled standing seam roofs, I didn't even use 3D cabinets/casework/lockers, they are all represented by detail lines on the plan. If I have to use detail lines to represent the ceiling related elements, that kind of defeats the purpose of BIM doesn't it? Hard to schedule quantities or assign costs to elements for estimating when they are just lines on a plan. I will continue to try to solve the problem and let you know how it turns out.
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Joined: Tue, May 16, 2006
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I have found that if I have a lot of views open that have to be upgraded everytime I move something, my system slows down. Just too many elements for REVIT to process. Another problem is building sections and elevations that have their far clipping plane set too far away or all elements turned on in VG even though they don't show in the view I'm looking at. That means that revit has to process every element in the view to see what it needs to display. To solve that problem, I pull that rear plane forward to only include the elements I need. BE CAREFUL WITH THIS ... Sometimes I've had problems with elements disapperearing when I adjust this plane. I've also found that sometimes edit/cut pofiles are messed up if you adjust section lines/depths.
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I got the bright idea to draw my ceiling sketch of my gyp bd ceiling offset 3/8" from all walls. Thought it would be more accurate on wall sections and other callouts. Well that was a big mistake. When I drew the ceiling sketch by selecting the corners of my walls and letting Revit offset my line 3/8" from the wall edge, that, apparently, created a huge regen relationship between the ceiling and the adjacent wall edge. I then compounded the problem by copying the original ceiling area and pasting it next to the original one (offset 3/8" so the ceiling control joint was being automatically created) and continued to paste it six or eight times down the length of the corridor. That appears to have increased the "regen/searching for the edge process" tenfold. Suddenly, my project slowed to a crawl bigtime. I have deleted all of those ceilings, just created one big corridor ceiling by picking in sketch mode, and my problems have all disappeared. I will now just draw detail lines on the ceiling to represent control joints. I have had similar problems trying to break up stack walls in the past. When you break up the same 3D family into too many pieces Revit does strange things. Maybe this will help others to avoid the same problem in the future.
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