I've looked for a mod that enables foundries to smelt pure metal items like plates, gears, wires etc. back into the metals they are made of. This would be particularly useful on planets like Fulgora where there's no easy way to obtain metal ores on the planet's surface. If you don't know of another mod that does this (and maybe even if you do) or see any obvious balance issues with it (quality cheese shouldn't be a problem since liquids can't have quality) I suggest adding this to this mod. The metal melting should perhaps be done at a bit of a loss, though, perhaps giving back only something like 75% of the molten metal from items that is needed to create them?