Hey Koarhil

I have the following issues with Angels. If I want to make glass, I need the Blast Furnace. But in your Blast Furnace recipe, I need glass for the Basic Structure Component.
That's why I can not produce Science Packs 2.

Do you have angel's smelting patch? If so then that might be the reason. If you'd like instructions how to get around that let me know.

Yes, Angel's smelting patch is not an "official" angel mod and kaoextended is based only on the officials mods.
Unfortunally for the moment my mod is not compatible with this mod....

There are two solutions.
The first one is in the mod settings for "Angel's Smelting Patch". There is an option for "Add an expensive recipe for early glass". (Haven't played with it yet)
The second one is to cheat your fist glass to get the machines done for the science packs 2.
therefore you need 15 basic structure components and each of them needs 15 glass, so you have to cheat 225 glass. If you do so, your achievements wont get any progress on this map.
/c game.player.insert{name="glass", count=225}