| I get more
              questions about the Autodesk® Architectural Desktop
              implementation of curtain walls than on any other topic. Curtain
              walls as a modern building concept came into the architectural
              lexicon with the invention of steel frame and concrete frame
              buildings at the end of the 19th century.
               Autodesk
              Architectural Desktop 3.3 has a complete Curtain Wall system.
              Besides the curtain wall itself, Curtain Wall objects are used as
              a framework or grid for the insertion of windows, doors, and
              window assemblies. As with many Architectural Desktop 3.3
              features, users have found many uses for Curtain Wall objects
              other than those originally intended by the software developers.
              If you go to the free Download Center in the AEC section of Point
              A, you will find these objects used in several new ways. For
              example, one new Curtain Wall style is used to represent a CMU
              block wall, it even includes mortar joints, and another style is
              used to represent a railing.
               In this
              tutorial, you will learn how to create a Curtain Wall object and
              set the object's Style properties.
               Creating
              a Curtain Wall Object from a Layout Grid1. Start a new drawing using the Aec arch [imperial] template, and
              select the Model Layout.
 2. Select
              Desktop > Layout Tools > Add Layout Grid (2D) from the main
              menu to bring up the Add Layout Grid dialog box.
               3. In this
              dialog box, set the following:
               
                Shape =
                  Rectangular
                X-Width =
                  40'
                Y-Depth =
                  20' 4. Place the
              grid in the model layout as shown in Figure 1.
                Figure 1: Place a 2D layout grid in the model layout.
 (click image to enlarge)
 5. Select
              Design > Curtain Walls > Convert Layout Grid to Curtain Wall
              from the main menu (see Figure 2).
                Figure 2: Convert the layout grid to a Curtain Wall object.
 6. Select
              the 2D layout grid you placed in Step 4, and enter Y (for Yes)
              in the command line and press the Enter key.
               7. Enter V
              (for vertical) on the command line and press the Enter key
              to bring up the Curtain Wall Style Name dialog box.
               8. In this
              dialog box enter the name TEST CURTAIN WALL, and click OK.
               The layout
              grid disappears, and the new curtain wall appears in the Plan
              View.
               9. Place the
              curtain wall in an SW Isometric View by clicking the SW Isometric
              View icon in the View toolbar(see Figure 3).
                Figure 3: The Curtain Wall object matches the layout grid, and
              the primary grid is vertical.
 Setting
              Curtain Wall Style PropertiesTo set properties for a curtain wall style:
 1.
              Right-click the curtain wall you just created, and select Edit
              Curtain Wall Style from the context menu to bring up the Curtain
              Wall Style Properties dialog box.
               2. In this
              dialog box, select the Design Rules tab.
               3. Click the
              Floating Viewer icon to bring up the viewer. Adjust the dialog box
              and viewer so you can see both of them at the same time (see
              Figure 4).
                Figure 4: Place the Viewer screen next to the Curtain Wall
              Style Properties dialog box.
 (click image to enlarge)
 Notice that
              the Primary Grid Element drop-down list is set to Vertical
              Division, the Orientation icon is shown as vertical, and the Cell
              Dimension is set to 10'-0" (see Figure 5).
                Figure 5: The Primary Grid Cell Dimension is 10'-0".
 (click image to enlarge)
 Watch the
              changes to the curtain wall in the viewer as you change the Design
              Rules.
               4. Click the
              New Cell Assignment icon to create a new cell assignment.
               5. From the
              Cell Location Assignment drop-down menu, select the Start and End
              check boxes (see Figure 6).
                Figure 6: Click the New Cell Assignment icon to create a new
              cell assignment.
 (click image to enlarge)
 Notice the
              change in the curtain wall (see Figure 7).
                Figure 7: The Curtain Wall object now has a new cell
              assignment.
 
 
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