Copper Cable

Lore & Background

In the world of Factorio, the Roboteer awakens on a barren, copper-veined alien planet with nothing but a crafting table and a desperate need to build a rocket. The first meaningful act of industry is not a grand machine but a small, repetitive gesture: feeding copper plates into the table and watching pairs of gleaming cables slide out. It is a deceptively simple task, yet it represents the moment raw geology becomes engineered infrastructure. The cables carry no signal of their own; they are merely the medium through which the Roboteer's growing network of machines will one day think. As the factory sprawls across the landscape, copper cables become a volume problem of staggering scale. Every assembler, every furnace controller, every circuit board in every electronic component demands them. The Roboteer's early hand-crafted batches give way to dedicated assemblers running around the clock, their little arms clicking in perfect rhythm, spitting out cable after cable to feed the insatiable hunger of the electronics line. In the grand narrative of the game, copper cables are the first thread in a tapestry that will eventually cover the entire continent. Fans often recall the quiet satisfaction of watching the first dedicated cable assembler come online—a small machine, a steady stream of input plates, and an endless ribbon of output. It is the moment the factory stops being a collection of manual tasks and starts being a system.

In Their Own Story

The wind off the copper flats carried a faint metallic tang. The Roboteer stood before the crafting table, the one that had been with them since the first grey morning on this strange world, and dropped a single plate of copper into the slot. A soft click. A half-second of nothing. Then two cables, bright and taut, slid into the output tray. They picked one up. It was warm from the plate's residual heat, the insulation smooth under their glove. Somewhere behind them, a furnace was already roaring, feeding the next plate into the cycle. The assemblers hadn't been built yet. The circuits hadn't been dreamed up yet. But in the small, steady rhythm of plate-in, cable-out, the shape of a civilization was being sketched in copper wire. The Roboteer set the second cable down on the table and reached for the next plate. There was a lot of cable to make.

Reader's Guide

Upstream chain: Copper Ore (mined by a Mining Drill) → Copper Plate (smelted in a Furnace) → Copper Cable (crafted in a Crafting Table or Assembler). The recipe is 1 Copper Plate producing 2 Copper Cables with a 0.5-second crafting time. Downstream: Copper Cables feed directly into Electronic Circuits (2 cables + 1 copper plate). They also appear as a direct ingredient in many machine recipes (assemblers, furnaces, labs, and more). The full electronics cascade continues: Electronic Circuit → Advanced Circuit (with Gold Plate) → Processing Unit. Optimal ratio: Because each Electronic Circuit consumes 2 cables (from 1 plate) plus 1 additional plate, the effective copper demand per circuit is 2 plates. A dedicated cable assembler running at full speed produces 4 cables/s (2 plates/s consumed). Match your furnace output to feed that rate. Bottleneck: In early game the furnace is almost always the limiting factor, as copper plates must be smelted before cables can be made. Once you have multiple cable assemblers, the mining drill and furnace become the true constraints. As the factory scales to hundreds of machines, copper cable demand can reach thousands per minute, making the copper mining and smelting chain the critical path. Scaling tip: Keep at least one spare cable assembler running so that a single machine failure doesn't stall the entire electronics line. Copper is cheap to mine but expensive to bottleneck.

Did You Know?

• Copper Cable is one of the very first crafted items most players produce, often within the first few minutes of a new game.
• Nearly every machine blueprint in Factorio lists copper cables as a required ingredient, making it one of the most universally demanded items in the game.
• The 1-to-2 crafting ratio means a single plate of copper yields two cables, but an Electronic Circuit still needs a separate third plate, so copper demand grows faster than the cable count suggests.