SHELL_3D removes material from inside a body leaving a thin-walled part.
+-----------------<----------------+ V | -->--(SHELL_3D)--+--(:SELECT_PART)--|part|----------+-->-- | | +--(:OFFSET)-------|offset|--------+ | | +--(:OPEN_FACE)----|face(s)|-------+ | | +--(:KEEP_MOLD)----+-(:YES)-+------+ | | | | | +-(:NO)--+ | | | +--(:CHECK_PART)---+-(:YES)-+------+ | | +-(:NO)--+
SHELL_3D [enter a distance] [specify a face]