Create a 3D fillet curve

Create a 3D fillet curve with a defined radius from two 3D curves with a common vertex. The fillet is calculated with a default radius based on the position of the points picked on the two curves. You can change the radius by using the dialog or the linear dragger in the viewport. The radius must be greater than a minimum value. The resulting 3D fillet curve is tangential to the trimmed original curves at the start and end points.

The given curves will be trimmed, or cut, at the position where the fillet starts and ends.

When Merge is on, the two curves and the fillet curve are connected into one part and the two original curves are removed from their parts. The resulting fillet is always a 3D spline curve. For planar curves, and when Merge is switched off, the resulting fillet curve is a circle (an analytic curve).

To create a 3D fillet curve,

1. Click 3D Geometry and then, in the 3D Curve group, click More next to Wire Editor.

2. Click Fillet Curve in the Modify section. The Fillet Curve dialog box opens.

3. Name the Part. This can be a new part (default) or an existing wire part.

4. Select Curve1.

5. Select Curve2. The fillet is displayed.

6. A default radius is calculated based on the points picked on the two 3D curves. To change the radius, click Radius and move the arrow to the desired radius, or enter a value in the text field.

7. Keep Merge on to connect the two curves and the fillet into one part. Turn Merge off to keep only the fillet.

8. Turn Feedback on to see the curvature of the 3D fillet curve.

9. Click to complete the operation.

Limitations

• The function does not work for closed input curves.

• Only 3D curves in wire parts can be used.