add required sphere.flip_normals()
@@ -120,6 +120,7 @@ Create an `openpyscad`_ :class:`Polyhedron` object from an `ezdxf`
# create an ezdxf MeshBuilder() object
sphere = forms.sphere()
+ sphere.flip_normals() # required for OpenSCAD
# create an openpyscad Polyhedron() object
polyhedron = ops.Polyhedron(
@@ -162,6 +163,7 @@ Create a `pysolid`_ :class:`polyhedron` object from an `ezdxf`
# create an ezdxf MeshBuilder() object
sphere = forms.sphere()
+ sphere.flip_normals() # required for OpenSCAD
# create an pysolid polyhedron() object
ph = polyhedron(
