T-Spline Thicken / Patch problem

[3Dpcb]

I would like to make a thin organic surface from a Sketch (Spline).

Am I doing something wrong or is this a bug in Fusion 360?

[innovatenate]

You may try the following technique as a possible solution:

Sketch a Spline:

Use the Extrude Command in the Sculpt Workspace and make sure to add enough faces to capture the shape. The Spacing setting (Curvature vs. Uniform) may also be good to toy with.

In the Edit Form command, use ALT + the two directional scale tool to add face towards the center of the shape.

Right click on the outside edge (must be out of the edit form command) and select Crease

Last, you can use the Fill Hole command to close the open portion.

I hope that helps. Please let me know if you have any questions.

Thanks,