hyperbola hyperbola 0 0 0 30 10
extsurf es_hyperbola hyperbola 0 0 1
offset es_hyperbola_of es_hyperbola 5
offset es_hyperbola_of_of es_hyperbola_of 5
mkface result es_hyperbola_of_of 0 3 0 40
set MaxFTol 9.9999999999999995e-08
set MaxETol 9.953938903335782e-07
set MaxVTol 9.9539389033357862e-07