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Hephaestus Forge Wiki

A smeltery mod for Minecraft 1.21.1/26.1.2

Welcome to the official documentation for Hephaestus Forge. Here you'll find everything you need to create custom recipes using our datapacks or mods.

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Recipe Types

Recipe	Machine	Description
Melting	Melter / Smeltery	Melts items into fluids
Entity Melting	Smeltery	Damages entities to produce fluids
Alloy	Smeltery	Combines multiple fluids into one
Casting Table	Casting Table	Pours fluid into a cast to make items
Casting Basin	Casting Basin	Pours fluid into the basin to make blocks

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Mechanics

Topic	Description
Fuel	How fuel fluids work, how to register custom fuels and set temperature

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Quick Start

All recipes are loaded from datapacks. Place your JSON files in:

data/<your_namespace>/recipe/<recipe_file>.json

The type field determines which machine processes the recipe.

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Temperature Reference

Temperature	Description
300	Low heat — wood, plants
600	Medium heat — stone, metals
800	High heat — nether materials
1000+	Extreme heat — end materials, alloys

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Fluid Amount Reference

Hephaestus uses millibuckets (mB) for all fluid amounts.

Unit	Amount
1 Nugget	10 mB
1 Ingot	90 mB
1 Block	810 mB
1 Bucket	1000 mB

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Hephaestus Forge is a reimagining of Tinkers' Construct for Minecraft 1.21 and 26.1.