Just a heads-up that I want to share some thoughts on the mod—this is just a healthy discussion and a proposal, definitely not a criticism! :)
The tier 2 and 3 recipes you made used the ore paths before the ingot stage in the foundry (metallurgy smelting rather than metallurgy casting). It's an interesting perspective, because in base Angel's & Bob's (A&B), the ores follow this path: ore -> processed -> pellet -> other intermediate steps depending on the ore (like iron hydroxide, lead oxide, silver nitrate, etc.) -> ingots. From the ingot stage, it branches out into other paths, like powders, and especially the molten stage, which opens up the possibility of mixing ingots. Take classic brass (copper + [tin or lead] + zinc), or bronze (copper + tin; copper+ nickel+ tin; or copper+ tin + zinc). The whole logic behind ingots is to mix them to create more efficient combinations, like the steel variations (steel + manganese or silicon; or mixes like cobalt ingots + steel ingots).
Another point of discussion is that for some recipes, you just added lava and calcite but kept the exact same output. For example: 2 processed gold + 60 chlorauric acid in a chemical furnace = 12 gold cathode. The Vulcanus alternative is: 2 processed gold + 60 chlorauric acid + 1 calcite + 25 lava = 12 gold cathode. You could tweak the script to give a +25% yield instead of just 12; maybe bump it to 20, you know?
It would be great if you could make it more "worth it" to go the molten route, and from the molten stage, craft the other items. For example, making plates directly from molten (just like in original AngelBobs), or like your recipe for copper wire + molten gold = gold wire. Or, similarly to the Space Age DLC, where molten iron directly makes pipes, gears, and iron rods. But for the other tiers, you didn't follow the ingots -> molten path. Having something like molten titanium -> titanium plates or titanium gears would be really good.
Another thing: the ratios seem "less worthwhile" than in base AngelBobs. For example, 40 molten titanium -> 4 titanium in a casting machine. In the foundry, it's 24 molten -> 2. Another example is 120 molten (bronze or brass) -> 10 (bronze or brass) plates. So in the foundry, it actually has a worse value. I'm not sure if this is a design choice from Space Age itself, as I haven't reached Vulcanus in vanilla or in this mod yet—I'm just analyzing the recipes right now, so feel free to ignore this comment if I'm off base!
And I'd like to say that you forgot to make the molten platinum :)
Aluminium casting 2 (aluminium, manganese ingot)
Aluminium casting 3 (aluminium, copper, silicon ingots)
Advanced manganese casting 1 (iron, manganese ingots = molten iron)
Advanced iron casting 2 (iron, silicon ingots = molten iron)
Advanced iron casting 3 (iron, cobalt, nickel ingots = molten iron)
Advanced iron casting 4 (iron, chrome, nickel ingots = molten iron)
The idea would be to mix each ingot into the molten stage. The way you set it up, the foundry feels a bit overpowered, taking over the roles of several different machines at once.
Finally, if possible, it would be awesome to do it like base AngelBobs and add Roman numeral icons to the recipes, or maybe a Vulcanus icon to indicate that it's one of your custom recipes. Here is an example for all variants of molten iron recipes: https://ibb.co/VWXwRgyC
