How to Make a Dome in SOLIDWORKS

The Dome feature adds a raised or indented dome shape to selected faces. It is useful for buttons, covers, caps, molded parts, decorative forms, and smooth bulged surfaces that do not need a full loft or boundary surface.

Create the base shape

Start with a solid body that has the face you want to dome. The selected face can be circular, rectangular, or another closed face, but the result depends heavily on the face shape. A clean, simple face produces a cleaner dome.

If the dome needs a specific outline, create that outline first with an extrude, cut, split line, or surface boundary before applying the Dome feature.

Add the Dome feature

1. Select the face that should receive the dome.
2. Go to Insert > Features > Dome.
3. Set the dome height.
4. Choose whether the dome goes outward or inward.
5. Use the preview to check the result, then accept the feature.

Control the dome shape

The height value controls how strong the dome appears. A small height creates a subtle crown, while a larger height creates a more dramatic bulge. If the dome starts to fold or fail, reduce the height or simplify the selected face.

For parts that will be manufactured, consider wall thickness, draft, tool access, and whether the dome should be a true design feature or just a visual surface.

Use Dome with multiple faces

You can select more than one face if the model needs matching domes. Review the preview carefully because different face shapes may produce different curvature. For consistent results, use similar face sizes and shapes.

Troubleshooting

If the Dome feature fails, try a smaller height, remove tiny edges from the selected face, or create a cleaner boundary for the dome. If the design needs more control than Dome provides, use Loft, Boundary Surface, or Fill Surface instead.

After the dome is created, rebuild the part and inspect the transition around the selected face. The edge should look clean and should not create unexpected thin geometry.