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**A manual page a day... Click here to see the manual table of contents.**

- You can create rectangular boxes, or cubes. A box consists of six rectangular surface planes. The base of the box is always parallel with the xy plane of the current UCS. You position the box by specifying either a corner or the center of the box. You determine the size of the box by either specifying a second corner and the height; defining the box to be a cube and then providing its length; or specifying the length, width, and height.

- Do one of the following:
- Choose Draw > Surfaces > 3D Surface and than type Box.
- On the Surfaces toolbar, click the Box tool ( ).

- Type ai_box and then press Enter.
- Specify the first corner of the base.
- Specify the lenght of side of box.
- Specify the width of box.
- Specify the height.
- .

First corner of the base ( |

- You can create three-dimensional wedges consisting of five surface planes. The base of the wedge is always parallel with the xy plane of the current UCS with the sloped face opposite the first corner. The height is always parallel with the z-axis. You position the wedge by specifying either a corner or the center of the wedge. You determine the size of the wedge by either specifying a second corner and the height; defining the wedge based on a cube having a given length; or specifying the length, width, and height.

- Do one of the following:
- Choose Draw > Surfaces > 3D Surface and than type Wedge.
- On the Surfaces toolbar, click the Wedge tool ( ).

- Type ai_wedge and then press Enter.
- Specify the first corner of the base.
- Specify the opposite corner of the base.
- Specify the height.

First corner of the base ( |

- You can create three-dimensional cones defined by a circular base and tapering to a point perpendicular to the base. The base of the cone is always parallel with the xy plane of the current UCS; the height of the cone is always parallel with the z-axis. You position the cone by specifying the center of the base. You determine the size of the cone by specifying either the radius or the diameter of the base and the height.

- Do one of the following:
- Choose Draw > Surfaces > 3D Surface and than type Cone.
- On the Surfaces toolbar, click the Cone tool ( ).

- Type ai_cone and then press Enter.
- Specify the center of the base of the cone.
- Specify the radius or diameter.
- Specify the height.
- Specify the number of longitudinal sections.

Center of the base ( |

- You can create tetrahedrons (three-sided pyramids) or four-sided pyramids. The sides of the resulting pyramid can meet at a point (the apex) or can form a three- or four-edged top. The sides of a four-sided pyramid can also meet along a ridge defined by two points. The base of the pyramid is always parallel with the xy plane of the current UCS. You position the pyramid by specifying a corner of the base. You determine the size of the pyramid by specifying the base points and either the apex, the corners of the top surface, or the endpoints of the ridge.

- Do one of the following:
- Choose Draw > Surfaces > 3D Surface and than type Pyramid.
- On the Surfaces toolbar, click the Pyramid tool ( ).

- Type ai_pyramid and then press Enter.
- Specify the first point for the base of the pyramid.
- Specify the second and third points.
- In the prompt box, choose Tetrahedron.
- Specify the apex of the tetrahedron.

The first point ( |

- Do one of the following:
- Choose Draw > Surfaces > 3D Surface and than type Pyramid.
- On the Surfaces toolbar, click the Pyramid tool ( ).

- Type ai_pyramid and then press Enter.
- Specify the first point for the base of the pyramid.
- Specify the second, third, and fourth points.
- In the prompt box, choose Top Surface.
- Specify the first point on the top surface of the pyramid.
- Specify the second, third, and fourth points

The first point ( |

- Do one of the following:
- Choose Draw > Surfaces > 3D Surface and than type Pyramid.
- On the Surfaces toolbar, click the Pyramid tool ( ).

- Type ai_pyramid and then press Enter.
- Specify the points as described previously.

- You can create cylinders defined by a circular base. The base of a cylinder is always parallel with the xy plane of the current UCS; the height of a cylinder is always parallel with the z-axis. You position a cylinder by specifying the center of the base. You determine the size of a cylinder by specifying either the radius or diameter of the base and the height

- Do one of the following:
- Choose Draw > Surfaces > 3D Surface and than type Cylinder.
- Type ai_cylinder and then press Enter.
- Specify the center of the base of the cylinder.
- Specify the radius or diameter.
- Specify the height.
- Specify the number of longitudinal sections.

Center of the base ( |

- You can create spheres. The latitude lines of a sphere are always parallel with the xy plane of the current UCS; the central axis is always parallel with the z-axis. You position a sphere by specifying its center point. You determine the size of a sphere by specifying either its radius or its diameter.

- Do one of the following:
- Choose Draw > Surfaces > 3D Surface and than type Sphere
- On the Surfaces toolbar, click the Sphere tool ( ).

- Type ai_sphere and then press Enter.
- Specify the center of the sphere.
- Specify the radius or diameter.
- Specify the number of longitudinal sections that are perpendicular to the xy plane.
- Specify the number of latitudinal sections that are parallel to the xy plane.

| ||

Center ( |
| The resulting sphere. |

- You can create a three-dimensional dish. The latitude lines of a dish are always parallel with the xy plane of the current UCS; the central axis is always parallel with the z-axis. You position a dish by specifying its center point. You determine the size of a dish by specifying either its radius or its diameter.

- Do one of the following:
- Choose Draw > Surfaces > 3D Surface and than type Dish.
- On the Surfaces toolbar, click the Dish tool ( ).

- Type ai_dish and then press Enter.
- Specify the center of the dish.
- Specify the radius or diameter.
- Specify the number of divisions around the dish.
- Specify the number of top to bottom divisions.

Center ( |

- You can create a three-dimensional dome. The latitude lines of a dome are always parallel with the xy plane of the current UCS; the central axis is always parallel with the z-axis. You position a dome by specifying its center point. You determine the size of a dome by specifying either its radius or its diameter.

- Do one of the following:
- Choose Draw > Surfaces > 3D Surface and than type Dome.
- On the Surfaces toolbar, click the Dome tool ( ).

- Type ai_dome and then press Enter.
- Specify the center of the dome.
- Specify the radius or diameter.
- Specify the number of divisions around the dome.
- Specify the number of top to bottom divisions.

Center ( |

- You can create a three-dimensional donut or ring-shaped entity known as a torus. The diameter of a ring is always parallel with the xy plane of the current UCS. A torus is constructed by revolving a circle about a line drawn in the plane of the circle and parallel with the z-axis of the current UCS. You position a torus by specifying its center point. You determine the size of a torus by specifying its overall diameter or radius and the diameter or radius of the tube (the circle being revolved).

- Do one of the following:
- Choose Draw > Surfaces > 3D Surface and than type Torus.
- On the Surfaces, click the Torus tool ( ).

- Type ai_torus and then press Enter.
- Specify the center of the whole torus.
- Specify the radius or diameter of the whole torus.
- Specify the radius or diameter of the body of the torus.
- Specify the number of longitudinal sections that are perpendicular to the xy plane.
- Specify the number of latitudinal sections that are parallel to the xy plane.

Center ( |