WarframeAlchemyLab ES
How to farm it? See the full plan Part of: Gram

Where it drops

Duviri / Endless: Tier 6 Normal 1.03%

FAQ

Where does Gram Blueprint drop?

The best source of Gram Blueprint is Endless: Tier 6 (Duviri), at 1.03% per reward according to Digital Extremes' official drop tables.

Can Gram Blueprint be traded?

No, Gram Blueprint cannot be traded: you have to earn it in-game.