Internal relief void arrangement for casting system

A manufacturing system for manufacturing a cast article, the manufacturing system comprising:

• a rapid manufacturing device having a support bed that is configured to support a particulate material, the rapid manufacturing device configured to manufacture a first article from the particulate material, the first article including an outer shell, a relief area that supports the outer shell, and a collection of the particulate material collected within the outer shell, the outer shell having an outer surface that defines an outer periphery of the first article, the relief area including a relief void;
• a container for containing an outer member material configured to form an outer member about at least a portion of the first article, the outer member defining an internal cavity that corresponds to the outer surface of the at least a portion of the outer shell;
• a heating device with a heating element configured to heat the outer member and the first article and thermally expand the first article within the outer member, which deforms the first article selectively at the relief void, and eventually melt the first article into a molten mass within the internal cavity of the outer member;
• and
• a solidification device with a support configured to support the outer member with the molten mass therein while the molten mass solidifies into a second article within the internal cavity, the second article corresponding to the internal surface of the outer member.