How is total raw calculated for Science Pack 2?

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?

Answer

The recipe for transport belts makes two belts, not one

Attribution
Source : Link , Question Author : Luc M , Answer Author : BlueRaja – Danny Pflughoeft

Leave a Comment