Venerdo Alloy, Crafted using a reusable blueprint available from Smokefinger at Rank 1 Solaris United Standing. Crafting these will require a number of rare resources that can only be acquired through interaction with several other factions. Once Rank 1 is reached players are able to purchase the blueprints for the Voidrig Casing, Engine, Capsule, and Weapon Pod. This is accomplished by gathering Orokin Matrices dropped by enemy Necramechs, or obtained as rewards from Mother's 'Isolation Vault' bounty, and trading them to Loid for Standing.
These four blueprints can all be acquired from Loid after reaching rank 1 in the Necraloid Syndicate. In order to craft the Voidrig players will first need to acquire the four component blueprints and manufacture the parts.