circle circle 0 0 0 0 0 1 30
extsurf es_circle circle 0 0 1
offset es_circle_of es_circle 5
mkface result es_circle_of 0 3 0 40
set MaxFTol 9.9999999999999995e-08
set MaxETol 1.1864731039853525e-06
set MaxVTol 1.1864731039853529e-06