You need to get five red borders of a specific raid weapon and extract the deep sight pattern from them before the crafting pattern will be available at the enclave. So, for example if want the ability to craft the Zaouli's Bane hand cannon you will need five red border Zaouli's Banes. You can get one red border per week from the end chest for 20 spoils of conquest. If you activate the red border puzzle you will get a random red border weapon off Oryx when he dies. Also, when Kings fall is the weekly rotator you can farm Oryx for red borders. Buying weapons out of the end chest after you get your weekly red border is a waste. You will not get anymore red borders, you're just wasting spoils. Also, weapons purchased from the end chest for spoils cannot be deep sighted with a harmonizer. Though the weapons can bug sometimes and will allow a deep sight harmonizer to be used, keep your eyes open. Hope this helps😉👍