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Forums >> Revit Building >> Technical Support >> groups - need help
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Joined: Fri, Oct 24, 2008
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I am working on an appartment complex currently and I thought I'd have it easy with the unit types and using groups to control the different types, but its turning into a nightmare, here is the lowdown: So I build the shell of the building with the outer walls, roof, floors etc, but not the units plans. Once I was done I did one unit plan. I put in the fur downs, the interior unit walls, doors, cabinets, plumbing fixtures, ceilings, etc. Then selected the whole project and then excluded all the building shell bits and pieces that weren't part of the unit plan and then I made the group. Now when I copy it to clipboard or drag it in the plan I start getting all these errors, the first being that it doesn't contain the same number of items as the orginal group and I need to "fix" the group. Then only fix that works is to make it another named group, but that defeats the purpose of having a group unit type. I have no idea why its says this since I'm just placing the group I just made. I am placing the group not in a space in the shellof the building but in and "open area" because I have to turn it 90 degress and then move it to where I want it. Now that is just one of the numberous errors that pop up. Other wierd things happed like cabinet tops extending 50 feet form their original locations an other crazy stuff. With out having the model in front of you I realize its difficult to diagnose, but can you help me or give me a direction, or at least a "what not to do" list would even be nice. Thanks.
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Joined: Tue, May 16, 2006
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Groups are not easy. Look at what you have included. Hosted elements are a problem in groups. They can be in them without their host but if a new location does not have an appropriate host in the right place, the item will be dropped. Your process of selection was oo inclusive. You should pick each item to assure you have only what you want. You may also want to make this more than one group.
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Joined: Fri, Jun 12, 2009
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I have not tried this... but what about creating your apartment units as a separate projects and just link them to your core/shell building?
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Joined: Tue, Apr 12, 2005
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I would definitely suggest using linnks to achieve what you're trying to do rather than groups.
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Joined: Tue, May 16, 2006
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Don't do linked files for this, you will find that is a real nightmare. Groups are much better but you need to set them up correctly and really understand how they work. You might want to group so that some items are easily placed then un grouped. Items like baths that may change often would stay as a group but understand that every instance of the group has to change when it is modified and that can be time consuming.
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Joined: Mon, Mar 19, 2007
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Unfortunately I don't think it is an easy answer. Groups are and have always been notorious for becoming inconsistent. I came into the office one weekend to try and clean up all of our unit type groups to make sure everything was hosted properly and that we wouldn't have any future problems. For some reason though we still got some errors. Sometimes the easiest thing to do is just to create a new group, delete the old one, and replace it with the new one. Then, rename the new one to have the same name as the old one. Confusing language, I know, but groups are confusing too and it is an issue that I wish Autodesk would address.
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I take this approach. Designing stage where the layouts are changing around a fair bit - I'll use Links & By Linked View options. When the design is more resolved and only minor changes are required and i need more control over wall joins i then bind the links to groups and use attached detail groups. With Groups, its a good a idea to give walls unconnected heights, don't attach their tops or bottoms, let the fixtures have their own groups. Don't group ceilings, they'll generally update themselves anyway if you move walls... HTH.
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