Best upcycler to make everything legendary (no liquid). Recommended to use on Fulgora close to your scrap processing facility. Ideally, you'll need quality modules in your miners (or big drills) to get quality scrap. Then process in recyclers with quality modules too to increase your chance of getting higher quality materials. Anything that can be made in EM Plants, use the EM Upcycler instead as you'll get the productivity bonus.