Draws regular and slanted cylinders:
 Classic: cylider is drawn from a 3D polyface mesh (see Ai_Cylinder command).
 Shape, Pro and Platinum: cylinder is drawn as a 3D solid.
Accessing the Command
command bar: cylinder
alias: cyl
menu bar: Model  3D Solids  Cylinder
toolbar: 3D Solids 
ribbon: Solid  Create  Primitive  Cylinder
: cylinder
You are prompted:
Select center point or [3Point/2Point/Tangenttangentradius/Elliptical]: (Enter coordinates, pick a point, or else choose an option)
Radius of base of cylinder or Diameter <x.xx>: (Enter a distance, pick a point, press Enter to accept the previously entered value, or else enter D)
Specify height or [2Point/Axis endpoint] <x.xx>: (Enter a height, pick a point, press Enter to accept the previously entered value, or else choose an option)
If Dynamic Dimensions are active, you can enter the dimensions in the dynamic dimensions entry fields.
Command Options
Option 
Description 
Diameter 
Specifies the radius of the cylinder; prompts you: Diameter of base of cylinder <x.xx>  (enter x,y,z coordinates, a distance, pick a point, or else press Enter to accept the previously entered value.) 
2Point 
Specifies the height of the cylinder as the distance between two points. Prompts you:

Axis endpoint 
Specifies the endpoint of the axis, allowing to create a cylinder of which the axis is not parallel to the Zaxis of the current coordinate system. Prompts you: Specify axis endpoint  (enter coordinates or pick a point) 
Grips Editing
Cylinders can be edited directly through grips:

Select the cylinder. Notice that it has two grips.

Drag a grip to move the cylinder. (Both grips perform the same function: move.)
Related Commands
Box  creates 3D boxes as solid models.
Cone  creates 3D cones 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)
Region  creates 2D regions from 2D entities.
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.