Revolve EllipseArc

i draw a ellipse Arc by “EllipseArc.ByplaneRadiiAngele” and Revolve by “surface.byrevolve”
i want to Revolve Arc2 ellipse by Major Axis
what should I do?2

The error message on that node should be fairly self explanatory -

Warning: Surface.ByRevolve operation failed.
Unable to compute revolve : WIRE_X_AXIS – Wire Intersects Axis

Basically Dynamo is telling you that you’ve created a self-intersecting surface which the geometry engine can’t do. If you use the Vector.XAxis as your axis direction it should work without issue.

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