How does one read the Schematic for items I for Yeah Science 3 and should be able to use tier 3 schematics, I've got all the Mats to make it but it says you do not know the reciepe so do I have to use the Schematics somehow, the Schematics I have a Tier 1 and 2, i'm probably being really thick about it, but if someone could nudge my brain i'd be grateful Thanks 
