Creates cones and truncated cones:
 Classic: cone is drawn from a 3D polyface mesh (see the Ai_Cone command).
 Shape, Pro and Platinum: cone is drawn as a 3D solid
Accessing the Command
command bar: cone
menu bar: Model  3D Solids  Cone
toolbar: 3D Solids 
ribbon: Solid  Create  Primitive  Cone
: cone
You are prompted:
Select center point or [3Point/2Point/Ttr/Elliptical]: (Pick a point, or enter an option)
Radius of base of cone or Diameter <xx.xx>: (type a value, or pick a point to define the base radius, press Enter to accept the default value, or else type D to define the diameter)
Specify height or [2Point/Axis/Top] <xx.xx>: (Type a value, pick a point, press Enter to accept the default value, or else enter an option)
When Dynamic Dimensions are active, you can enter the dimensions in the dynamic dimensions entry fields.
Command Options
Base Options 
Description 
3Point 
Defines a circular base through three points that indicate the circumference. Prompts you:

2Point 
Defines a circular base through two points that indicate the diameter). Prompts you:

TTR (Tangent Tangent Radius) 
Defines the diameter of the circular base as tangent to two entities and a radius. Prompts you:

Elliptical 
Defines an base that is elliptical. Prompts you:

Height options 
Description 
2Point 
Specifies the height of the cone as the distance between any two points; prompts you:

Axis 
Specifies the height of the cone by picking a point for the cone's tip, rotating the cone as necessary. Prompts you: Specify axis endpoint  (pick a point or else enter x,y,z coordinates) 
Top 
Create a truncated cone, where the top is flat. Prompts you:

Grips Editing
Cone can be edited directly through grips:

Select the Cone. Notice that it has one grip.

Drag the grip to move the cone.
Related Commands
Box  creates 3D boxes as solid models.
Cylinder  creates 3D cylinders as solid models.
Dish  creates the lower half of 3D balls as solid models.
Dome  creates the upper half of 3D balls as solid models.
Extrude  extrudes 2D entities into 3D solid models.
Interfere  creates 3D volumes of intersecting 3D solid models.
Intersect  removes volumes not in common between two solid models.
MassProp  reports the mass properties of 3D solid models and 2D regions.
Pyramid  creates a pyramid as a 3D solid (Pro and Platinum). Creates a pyramid as a polygon mesh (Classic)
Revolve  revolves 2D entities into 3D solid models.
Section  creates 2D regions from 3D models.
Slice  cuts 3D solids into two parts.
SolidEdit  edits the bodies, faces, and edges of 3D models.
Sphere  creates 3D balls as solid models.
Subtract  removes one solid model from a second.
Torus  creates 3D donuts as solid models.
Union  joins two or more solid models into a single entity.
Wedge  creates 3D wedges as solid models.