tarrah
2007-09-14, 06:41 PM
We just found a big glitch with Revit and how we are using our groups. Here is the conclusion:
You cannot make level changes to nested groups.
We have a new 100 unit, 4-story residential project. A typical floor plan contains many of one unit type, but other units are unique and only occur once per floor. So we have group instances of our typical unit plan that are placed inside of our entire floor plan, which is another group. In addition, our bathrooms and kitchens are also groups of components (i.e. sink, countertop, etc.) So we have kitchen groups nested in unit groups nested in floor groups.
When we needed to change the floor to floor height, we got a plethora of error messages.
Options/Solutions:
1a. Make your entire floor one group of model geometry and paste aligned to other levels.
1b. Make every unit (or every 2 or 3 units) a group and paste aligned to other floors without making the entire floor a group.
1c. Delete all instances of the group except for one instance, change the floor to floor height, and re-paste aligned, replacing the associated detail groups to the new group instances.
2a. Make your kitchens and bathrooms into components, drawing model lines to represent the kitchens and bathrooms in 2D. As a result, there are families inside of groups, but not groups inside of groups.
2b. Exclude kitchens and bathrooms from your unit groups.
Any thought out there in Revit world?
Subsequent questions:
1. Am i missing something?
2. Does the wall height have anything to do with this? Do walls need to be unconnected or can they attach to the level above? with my experimentation, I dont think it matters as long as you have NO nested groups.
3. I assume the same problems do not exist with nested families?
You cannot make level changes to nested groups.
We have a new 100 unit, 4-story residential project. A typical floor plan contains many of one unit type, but other units are unique and only occur once per floor. So we have group instances of our typical unit plan that are placed inside of our entire floor plan, which is another group. In addition, our bathrooms and kitchens are also groups of components (i.e. sink, countertop, etc.) So we have kitchen groups nested in unit groups nested in floor groups.
When we needed to change the floor to floor height, we got a plethora of error messages.
Options/Solutions:
1a. Make your entire floor one group of model geometry and paste aligned to other levels.
1b. Make every unit (or every 2 or 3 units) a group and paste aligned to other floors without making the entire floor a group.
1c. Delete all instances of the group except for one instance, change the floor to floor height, and re-paste aligned, replacing the associated detail groups to the new group instances.
2a. Make your kitchens and bathrooms into components, drawing model lines to represent the kitchens and bathrooms in 2D. As a result, there are families inside of groups, but not groups inside of groups.
2b. Exclude kitchens and bathrooms from your unit groups.
Any thought out there in Revit world?
Subsequent questions:
1. Am i missing something?
2. Does the wall height have anything to do with this? Do walls need to be unconnected or can they attach to the level above? with my experimentation, I dont think it matters as long as you have NO nested groups.
3. I assume the same problems do not exist with nested families?