Factorio Forums

Tier 1
-- 100 Red Research
-- 10 Seconds per point
-- +1% Assembler Speed
-- -1% Assembler Pollution

Tier 2
-- 200 Red Research
-- 200 Green Research
-- 20 Seconds per point
-- +2% Assembler Speed
-- -2% Assembler Pollution

Tier 3
-- 300 Red Research
-- 300 Green Research
-- 300 Blue Research
-- 30 Seconds per point
-- +3% Assembler Speed
-- -3% Assembler Pollution

Tier 4
-- 400 Red Research
-- 400 Green Research
-- 400 Blue Research
-- 400 Purple Research
-- 40 Seconds per point
-- +4% Assembler Speed
-- -4% Assembler Pollution

Probably 4x4 or 5x5 in size. It can turn raw ores into finished products. Any recipe could be made from its raw ingredients. Gears would be made from Iron Ore. Circuits would be made from Iron Ore & Copper Ore. Anything that includes Steel Plates would be include Iron Ore & Coal in its recipe.