ellipse ellipse 0 0 0 30 10
extsurf es_ellipse ellipse 0 0 1
offset es_ellipse_of es_ellipse 5
mkface result es_ellipse_of 0 3 0 40
set MaxFTol 9.9999999999999995e-08
set MaxETol 7.0058034631157723e-07
set MaxVTol 7.0058034631157745e-07