Casting

Casting is primarily used to make metal tools from copper and bronze, which are smelted into a liquid state and molded or "cast" into tool heads. Base metal ore nuggets or alloys can also be converted to ingots using this process.

Required Materials

To cast metal items, you need a crucible, fire pit, fuel (coal or charcoal), clay molds and metal nuggets.

Obtaining and Preparing Ores

Small stones containing metal ores appear on the surface of the world and are a good early game source of metal nuggets. To gather surface deposits, right click on the ore containing stones with an empty hand or any item to convert the stones into smeltable ore nuggets and collect in your inventory. Metal nuggets can also be obtained by panning. Nuggets obtained by collecting small stone surface deposits or panning are "ready to use" and do not require additional processing. Ores collected by mining are trapped in the parent stone. See the mining guide for more information. Stone and metal combinations harvested by mining must be placed in the crafting grid with a hammer to crush the stone and obtain ore nuggets. Each smeltable ore nugget contains 5 units of base metal.

Smelting Metal

Metal ores and alloys with melting points at or below 1300°C can be smelted in a crucible and cast to form metal ingots prior to smithing. Copper and Bronze Alloys may be cast into tool heads using clay molds. When the crucible is placed in the input slot of the fire pit, the crucible GUI opens. Ore nuggets to smelt can be placed into the four input slots of the crucible GUI. Ore amounts and types can be chosen based on which metal or alloy is to be created, and how much material is required to fill the selected molds. The crucible will hold four complete stacks of 128 nuggets, but only one material type (base metal or alloy) may be smelted at a time. (Ex: A player can add the ore materials to create a bronze alloy, but cannot then add additional copper and smelt the two materials separately.) To start smelting the metal, add fuel (Peat, coal or charcoal) to the firepit. To complete the smelting process, the fuel must raise and maintain the temperature of the metal above the melting point to liquefy the ores within the crucible. Be sure to select the fuel appropriately! Please note: the crucible is not a storage vessel. If a player removes the crucible from the firepit before heating, any ore nuggets inside the crucible will fall out of the container.

Casting Metals

Place the mold to be filled on a solid surface (Shift + Left mouse button). Tool molds occupy one block, but ingot molds may be placed two to a block. The metal can be poured into prepared molds when heated to a temperature above its melting point. When the metals are ready to cast, the heated crucible will appear glowing and will shift to the firepit output slot. Place the crucible in an active hotbar slot and and use the Right mouse button to pour materials into the ingot or tool mold. When the mold is filled (tool heads and ingots require 100 units), no more metal can be added to the mold. The metal will begin to cool in the mold. Once the metal is cold, ingots and tool heads can be removed from the molds. If a player attempts to pick up a mold before the metal is cool, the liquid material will be lost. A partially filled mold cannot be picked up without losing the material, even after the metal cools.

Alloy Ratios

Alloy	Name	Melting point	Components	Uses
	Brass	920 °C	Zinc 30% to 40% Copper 60% to 70%	Lanterns, Torch holders
	Bismuth Bronze	850 °C	Bismuth 10% to 20% Copper 50% to 70% Zinc 20% to 30%	Armor, Tier 3 Tools/Weapons
	Black Bronze	1020 °C	Copper 68% to 84% Gold 8% to 16% Silver 8% to 16%	Armor, Tier 3 Tools/Weapons
	Molybdochalkos	902 °C	Copper 8% to 12% Lead 88% to 92%	Lanterns
	Tin Bronze	950 °C	Copper 88% to 92% Tin 8% to 12%	Armor, Tier 3 Tools/Weapons