Revolve surface artifacts?

Rhino Rhino for Windows
1

any ideas on what’s causing the surface artifacts using “revolve” ? included image shows the desired cross section and the lump at the top of the horn…..

Art Smith

elliptical intake horn revolve problem
elliptical intake horn revolve problem1895×1334 224 KB

elliptical intake horn for Weber 32-36.3dm (612.7 KB)

2

In Revolve Output was set to SubD. Set it to Surface and the revolved surface follows the curve.

Command: Revolve
Select curves to revolve
Select curves to revolve. Press Enter when done
Start of revolve axis
End of revolve axis (Press Enter to use CPlane z-axis direction)
Start angle <0> ( Output=Surface DeleteInput=No FullCircle AskForStartAngle=Yes SplitAtTangents=No Deformable=Yes PointCount=10 Degree=3 )
Revolution angle <360> ( Output=Surface DeleteInput=No FullCircle SplitAtTangents=No Deformable=Yes PointCount=10 Degree=3 )

3

THANKS!!!

Art Smith

4

Check the box for solved so others now the problem was resolved.