How to Make a Cone in SOLIDWORKS

The easiest way to make a cone in SOLIDWORKS is to sketch a triangle profile and revolve it around a centerline. The Revolved Boss/Base feature creates the cone from that 2D profile.

This method is simple, dimension-driven, and easy to edit. It also works for truncated cones if the sketch profile has a flat top instead of a point.

Create the cone sketch

1. Start a new part.
2. Choose a plane and start a sketch.
3. Draw a vertical centerline for the revolve axis.
4. Sketch a triangle on one side of the centerline.
5. Dimension the height and base radius or diameter.
6. Make sure the profile is closed.

Use Revolved Boss/Base

1. Click Features > Revolved Boss/Base.
2. Select the centerline as the axis of revolution.
3. Set the revolve angle to 360 degrees.
4. Preview the cone.
5. Accept the feature.

Make a truncated cone

To make a truncated cone, sketch a four-sided profile instead of a triangle. The top edge controls the smaller diameter, the bottom edge controls the larger diameter, and the vertical dimension controls height.

This is useful for funnels, adapters, tapered plugs, and transition pieces. If the part is sheet metal and needs to flatten, use the appropriate sheet metal workflow instead of a simple solid revolve.

Troubleshooting cone features

• The revolve fails: check that the profile is closed and does not cross the centerline.
• The cone is the wrong size: edit the sketch dimensions.
• The feature is hollow: check whether Thin Feature was enabled.
• You need a flat pattern: use sheet metal tools rather than a normal solid cone.

For related revolve examples, see how to make a sphere in SOLIDWORKS and how to make a dome in SOLIDWORKS.

Reference: SOLIDWORKS Help explains Revolved Boss/Base as creating solid geometry by revolving a sketch profile around an axis.