210
AutoCAD and Its Applications—Advanced
supports have a smaller diameter than the feet and a longer length. To complete the
table, the bottom shelf is copied along the Z axis to create the top.
In Figure 8-17A, the bottom shelf has been created as an extruded solid from an
ellipse. The shelf is .375″ thick and is centered on the UCS origin. The underside of the ″
shelf rests on the XY plane. A second ellipse is drawn on the XY plane and rests on the
underside of the shelf. This ellipse serves as the path for the 3D path array. A construc-
tion cylinder has also been created with its base resting on the XY plane. The construc-
tion cylinder is 2″ in diameter and 2″ ″ in height, the dimensions of the table feet. The ″
construction cylinder is the item to be arrayed. During the operation, the base point of
the array is specifi as the top center point of the construction cylinder. This aligns fied
the top of the cylinder with the start of the path. Since the path is an ellipse, AutoCAD
defines the start of the path as one of the quadrant points on the major axis. When the fi
base point is selected, the cylinder is then aligned with the quadrant point. This is a
suffi start point for the array. ficient
Figure 8-16.
Using the
ARRAYPATH
command. A—Specifying 10 items to array and using the
Divide
option. B—Using the
Measure
option to specify 8 items to array and a distance of 25 units
between objects. C—The resulting array.
A
B
C
Number of items
and spacing between
items specified
Measure
option
selected