13

I don't understand how the total resource needed is calculated to produce one Science pack 2 (green one).

According to the Factorio wiki, Science pack 2 requires:

  • 1 Inserter
  • 1 Transport belt

Calculation for one Inserter

According to the Factorio wiki an Inserter requires:

  • 1 Green circuit
  • 1 Iron gear
  • 1 Iron plate

According to the Factorio wiki a Green circuit requires:

  • 3 Copper cables
  • 1 Iron plate

According to the Factorio wiki an Iron gear requires:

  • 2 Iron plates

According to the Factorio wiki Copper cable requires (to produce 2):

  • 1 Copper plate (1.5 Copper plate to produce 3 units)

So, to produce 1 Inserter, we need 4 Iron plates + 1.5 Copper plates.


Calculation for Transport belt

According to the Factorio wiki a Transport belt requires:

  • 1 Iron gear ( requires 2 Iron plates )
  • 1 Iron plate

So, to produce 1 Transport belt, we need 3 Iron plates.


Then, to produce one Science Pack 2, we need 7 Iron plates and 1.5 Copper plates.

Why is the total raw 5.5 Iron plates and 1.5 Copper plates?

28

The recipe for transport belts makes two belts, not one

  • 5
    Holy S***. Thanks! – Luc M Sep 2 at 3:31

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