Method shell

cadquery/cq.py:1183–1217

Remove the selected faces to create a shell of the specified thickness. To shell, first create a solid, and *in the same chain* select the faces you wish to remove. :param thickness: thickness of the desired shell. Negative values shell inwards, positive values

(
        self: T, thickness: float, kind: Literal["arc", "intersection"] = "arc"
    )

        )

    def shell(
        self: T, thickness: float, kind: Literal["arc", "intersection"] = "arc"
    ) -> T:
        """
        Remove the selected faces to create a shell of the specified thickness.

        To shell, first create a solid, and *in the same chain* select the faces you wish to remove.

        :param thickness: thickness of the desired shell.
            Negative values shell inwards, positive values shell outwards.
        :param kind: kind of join, arc or intersection (default: arc).
        :raises ValueError: if the current stack contains objects that are not faces of a solid
             further up in the chain.
        :returns: a CQ object with the resulting shelled solid selected.

        This example will create a hollowed out unit cube, where the top most face is open,
        and all other walls are 0.2 units thick::

            Workplane().box(1, 1, 1).faces("+Z").shell(0.2)

        You can also select multiple faces at once. Here is an example that creates a three-walled
        corner, by removing three faces of a cube::

            Workplane().box(10, 10, 10).faces(">Z or >X or <Y").shell(1)

        **Note**:  When sharp edges are shelled inwards, they remain sharp corners, but **outward**
        shells are automatically filleted (unless kind="intersection"), because an outward offset
        from a corner generates a radius.
        """
        solidRef = self.findSolid()

        faces = [f for f in self.objects if isinstance(f, Face)]

        s = solidRef.hollow(faces, thickness, kind=kind)
        return self.newObject([s])

    def fillet(self: T, radius: float) -> T:
        """