Useful, thanks! Also forced me to get my alum plants going. Had to hook up the ore lines twice, I looked at the images and only noticed Iron, not the counts so swapped the lines. Second glance saw both had the iron ore image so fixed that in my local copy of the blueprint.

@yucazu good catch. fixed!

Great blueprint! 😊 I just noticed one small thing—the input icon for the copper seems a bit off. Other than that, it's absolutely perfect! 👏