Talk:Science Machine/@comment-96.247.176.26-20130527181124/@comment-1766307-20130607211213

You're supposed to prototype items with your science machine... You need to go up to it with the required materials for something new, and if you can prototype it it will say "Prototype". From then onward you can make that item without a science machine nearby. This also applies to alchemy engines and shadow manipulators. Be careful with the latter, they reduce sanity when used.