Mundane waste material can be melted down and refined for steel, copper, gold, and glass.
Crafting guides and information can be found on Github: https://github.com/yzziizzy/minetest_forge

All code and textures are WTFPL. Seriously, I don't care what you do.
Dependencies:
Default, Technic
Update (2016 / 08 /14) [v. 0.2]
- Cooling is now fixed.
- The electrode uses as much power as the system gives it, like a battery box. The more energy the faster ores are melted.
- Liquids have density and stratify accordingly.
- Ores take different amounts of energy to melt.
- Bug fixes for fluid dynamics
Source: https://github.com/yzziizzy/minetest_forge
Zip: https://github.com/yzziizzy/minetest_forge/archive/0.2.1.zip