To Add an Interference Condition

Use this procedure to place objects, such as mass elements, in walls to create custom openings or cutouts in the wall. An example is a column grid structure where columns are connected by walls.

When you define the interference condition, you specify how the wall shrinkwrapping in plan views is affected by the interfering object. You can specify that the object be added to the wall, subtracted from it, or ignored. The option you select affects the wall only in plan views. In model display representations, interference is always subtracted from a wall, regardless of the option you select in this procedure.

Note: If you want to apply the same object as the interference condition for multiple walls, such as walls that meet at a corner, use the ignore option for subsequent walls after the first wall. In plan views, the effect is additive for all the walls to which you apply the interference condition.

The shrinkwrap display component must be turned on in the display properties of the wall or the wall style for interference to be visible. In most sample wall styles provided with AutoCAD Architecture 2023 toolset, shrinkwrap is turned on in plan display representations.

1. Place the object in the location where you want to specify the interference condition.
2. Select the wall to which you want to add an interference.
3. Click Wall tabModify panelInterference drop-downAdd.
4. Select the object intersecting the wall, and press Enter.
5. Specify how shrinkwrapping in plan view is applied to the interference condition:

   If you want to …	Then …
   add the interference condition to the shrinkwrapping	enter a (Additive).
   take the object shape out of the shrinkwrapping	enter s (Subtractive).
   ignore the object when shrinkwrapping is applied	enter i (Ignore).