Combining Objects into Blocks - AutoCAD 2011 and AutoCAD LT 2011: No Experience Required - page 358

FiGuRE 7.58 The Write Block dialog box
7. In the Insert Units drop-down list, select Inches or Millimeters, in
case the new drawing is used in a drawing that has units other than
Architectural or Decimal.
8. Click OK. A preview window briefly appears, the command ends, and
the selected material is now a new drawing file located in the folder
that you specified.
9. Close the 07A-FPLAY4.dwg drawing without saving any changes.
You can use the WBLOCK command in three ways, which are available via radio
buttons at the top of the Write Block dialog box. Here's a brief description of each:
Block To make a drawing file out of a block that's defined in the current drawing,
select the name of the block from the drop-down list at the top and then follow the
procedure in steps 4 through 7 in the preceding exercise. When you follow this pro-
cedure, the objects in the new drawing are no longer a block. Wblocking a block has
the effect of exploding it.
Entire Drawing Click this button to purge a drawing of unwanted objects such
as layers that have no objects on them and block definitions that have no refer-
ences in the drawing. You aren't prompted to select anything except the informa-
tion called for in the preceding steps 4 through 7. You can keep the same drawing
name or enter a new one. A preferable way to accomplish the same task is to use
the PURGE command. Open the Application menu, then click Drawing Utilities ➢
Purge or enter PURGE ↵ to open the Purge dialog box, and select which features you
want to purge.
objects You select which objects to use to create a new file, as in the preceding
steps 1 through 7.