Note: Outputs stone and calcite because recipe switching breaks if calcite is left in the foundry
Automatically produces either molten iron or copper on demand.

Originally shared on the public FactorioPrints / Factorio School archive (factorioprints.com · factorio.school). Authorship preserved from the public catalog.
Note: Outputs stone and calcite because recipe switching breaks if calcite is left in the foundry
Automatically produces either molten iron or copper on demand.