Blue Circuit factory (650/min, late game, train based)

Uses 1-4 trains.

Train stations (from left to right):

• blue circuit output
  • activates when it has more than 16k blue circuits
• sulfuricacid input
  • activates when it has less than 40k sulfuricacid
• copperplate input
  • activates when it has less than 16k copperplates
  • deactivates when it has more than 90k
• ironplate input
  • activates when it has less than 16k ironplates
  • deactivates when it has more than 90k
• red circuit input
  • activates when it has less than 32k red circuits
  • deactivates when it has more than 90k