Create a Solid or Surface by Revolving

Create a 3D object by revolving curves about an axis.

When the Mode option is set to Surface, you will create a surface and if Mode is set to Solid you will create a solid regardless of whether the curve is open or closed. See Overview of Creating Solids and Surfaces for more information. When revolving a solid, you can only use a revolve angle of 360 degrees.

Options for Revolving

  • Mode. Sets whether the revolve creates a surface or a solid.
  • Start Angle. Specifies an offset for the revolution from the plane of the object being revolved.
  • Reverse. Changes the direction of the revolve.
  • Expression. Enter a formula or equation to specify the revolve angle. This option is only available if you are creating associative surfaces. See Create Geometric Relationships between Associative Surfaces.
Procedures
To revolve objects about an axis to create a NURBS surface
  1. Click Surface tabCreate panelRevolve. At the Command prompt, enter revolve.
  2. Select the objects or edge subobjects to revolve.
  3. To specify the axis of revolution, specify one of the following:
    • The start and endpoint. Click to points on the screen to set the axis orientation. The axis points must be on one side of the revolved object. The positive axis direction extends from the start point to the endpoint.
    • The X, Y, or Z axis. Enter x, y, or z.
    • An object. Select a line, a linear edge of a polyline segment, or the linear edge of a surface or solid.
  4. Specify the angle of revolution.
To revolve objects about an axis to create a solid
  1. Click Solid tabCreate panelRevolve. At the Command prompt, enter revolve.
  2. Select the objects or edge subobject to revolve.
  3. To specify the axis of revolution, specify one of the following:
    • The start and endpoint. Click to points on the screen to set the axis orientation. The axis points must be on one side of the revolved object. The positive axis direction extends from the start point to the endpoint.
    • The X, Y, or Z axis. Enter x, y, or z.
    • An object. Select a line, a linear edge of a polyline segment, or the linear edge of a surface or solid.
  4. Press Enter. To create a solid the angle must be 360 degrees. If you enter a smaller angle of revolution, a surface is created instead of a solid.
Commands
3DOSNAP

Sets the object snap modes for 3D objects.

BREP

Removes the history from 3D solids and composite solids, and associativity from surfaces.

JOIN

Joins the endpoints of linear and curved objects to create a single object.

LIST

Displays property data for selected objects.

MEASUREGEOM

Measures the distance, radius, angle, area, and volume of selected objects or sequence of points.

REGION

Converts an object that encloses an area into a region object.

REVOLVE

Creates a 3D solid or surface by sweeping an object around an axis.

System Variables
3DOSMODE

Controls the settings for the 3D object snaps.

DELOBJ

Controls whether geometry used to create other objects is retained or deleted.

SOLIDHIST

Controls whether new composite solids retain a history of their original components.

SUBOBJSELECTIONMODE

Filters whether faces, edges, vertices or solid history subobjects are highlighted when you roll over them.

SURFACEASSOCIATIVITY

Controls whether surfaces maintain a relationship with the objects from which they were created.

SURFACEASSOCIATIVITYDRAG

Sets the dragging preview behavior of associative surfaces.

SURFACEMODELINGMODE

Controls whether surfaces are created as procedural surfaces or NURBS surfaces.