Sand molding for metal additive casting

A non-transitory computer readable medium for casting an object, wherein the non-transitory computer readable medium stores instructions for:

• additively producing, by a casting system, multiple production layers, one currently-produced production layer after the other;
• wherein for each currently-produced production layer:
• forming, by a mold system of the casting system, one or more mold-layers;
• providing, by a replaceable material provision system of the casting system, one or more replaceable material layers;
• and
• forming, by a molten metal processing of the casting system, one or more current object regions of the currently-produced production layer by providing molten metal that replaces the one or more replaceable material layers.