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>> Hello. Welcome
to Module 12.

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In this module, we
are going to follow

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the book AutoCAD
2015, Bible,

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and Chapter 24,

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creating solids
and editing in 3D.

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In this chapter, we are

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working on creating
base geometrical shape,

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drawing extrude,
swept, revolved,

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lofted and polyline solid,

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manipulating
solid directory,

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creating a mesh subject.

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For drawing, basic,
smooth, solid,

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AutoCAD make it
easy to create

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most basic 3D
geometric shapes.

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These shapes are easy
to draw because you can

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dynamically see the
result as you draw.

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For example, drawing
box in Figure

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24.2 shows a solid box

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with a hidden visual
style applied.

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To draw a box,
follow these steps.

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Choose home tab,
modify panel,

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3D solid, drop
down menu box.

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I'm going to
go to AutoCAD.

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We are in the 3D
modeling space.

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We are under
the solid box.

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And the best way of

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seeing the result
is to change

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the view to

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either Southwest
or Southeast view.

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Box.

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At the specified
first corner

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or center prompt,

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specify any corner of
the box or right click

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and choose a center to

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specify the 3D
center of the box.

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Not the center
of the base.

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If you specify the
corner, the default,

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you then see the
specified other corner

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or cube length prompt.

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The default is to pick
the opposite corner

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in the X and Y plane.

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This defines the
base of the box.

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You can define
the base just

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like you define
any rectangle by

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dragging and picking
the opposite corner or

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by entering a coordinate

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at the specifying height,

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or pick two points to
specify the height.

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This complete the box.

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If you specify the center

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at the first prompt,

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you see the
specifying center

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of the box appears.

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If you pick the
corner of the box,

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AutoCAD then ask you

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for the height to
complete the box.

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If you specify the length,

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AutoCAD then ask for
the width and height.

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If you use the
cube option,

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other AutoCAD asks for

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a length and
complete the box.

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You can specify a
negative length,

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width or height to

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build the box in the
negative direction.

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If you specify the
center of the cube,

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don't forget that the
centre's Z coordinate

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is different from the
corners' Z coordinate.

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AutoCAD always
create the box

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parallel to the XY plate.

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Drawing a wedge.

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A wedge is a box sliced
diagonally in half.

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The prompts are
virtually the

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same as for the
box command.

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Figure 24.3,
which is here,

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24.3, shows two
solid wedge.

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For creating a wedge,

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follow the steps
from the book,

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going back to AutoCAD.

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Choose a home tab,

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modeling panel, 3d
solid drop-down menu.

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Wedge.

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At all specified
first corner,

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specify any corner
of the wedge or use

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the center option to

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specify 3D center
of the wedge.

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If you specify the
corner by default,

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you then see the
specified other corner

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or cube length prompt.

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The default is to pick

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the opposite corner
in the XY plane.

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You can also define it
by using a coordinate.

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The command then
asks you for

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the height in
the Z direction.

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This complete the wedge.

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If you use the
cube option,

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AutoCAD ask for one length

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and complete the wedge.

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For positive
length, the wedge

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slopes downward in the
positive Z direction.

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However, if you have
a dynamic input on,

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the slope will follow

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the direction
of the cursor.

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If you use the
length option,

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AutoCAD asks you for
a width and height.

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If you specify the center,

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you see the specified
center prompt.

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Specify the center point,

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the specified corner or

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cube length
prompt displays.

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If you pick the
corner of the wedge,

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the command asks
for the height.

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If you specify a length,

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AutoCAD then ask for
the width and height.

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If you use the
cube option,

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AutoCAD ask for the
length and complete

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the wedge. Drawing cone.

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You can draw cones with

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a circular or
elliptical bases.

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By specifying
negative height,

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you can create an
individual cone like

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an ice cream cone by

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specifying the
axis endpoint,

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the APX, you can draw

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cones on the angle from
the X and Y plane.

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You can also specify a
top radius to create

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a truncated cone,

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sometimes called
a frustum cone.

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Figure 24.4 shows
some cones.

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So here is the steps
for drawing cone,

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going back to AutoCAD.

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Choose Home tab
modeling panel,

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3D, solid dropdown menu,

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home tab modeling,

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solid dropdown
menu, find cone.

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At the specified center
point or base of 3D,

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2D elliptical,

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specify the center
of the base.

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Just click on the screen.

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If you want a circle
con, otherwise,

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use the two-point
or three-point

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or tangent-tangent
radius option

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to define a circle basis.

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Use the optical option,

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define an elliptical base.

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If you specify a
center point at

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a specify base,
radius or diameter.

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If you specify center,

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which we specify center,

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specify a radius or use

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a diameter option,
specify the diameter.

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If you choose the
elliptical option,

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use a prompt to define
the elliptical base.

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Then prompts are like

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the prompts for the
ellipse command.

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So here we are at

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specify base radius
or diameter,

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just click anywhere
on the screen,

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and then you see
specify a height.

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Specify the height
by dragging

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or entering a value.

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Use the two-point
option to

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specify the height by
picking two points.

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At the access
endpoint option

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is another way to
specify the height

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and enables you to create
the angle of cone.

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By default, the
access endpoint is

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a relative
coordinate based

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on the center of the base.

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The top radius option

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create a truncated cone.

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I'm going to give a
height, click here,

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I'm changing the visual
style to conceptual.