Blueprint of the WeekFree

Iron Smelting Mega-Array

Beacon-free 24-furnace iron smelting array sized for a fully compressed yellow belt. Outputs exactly 900 iron plates/min at 100% belt saturation — no tuning required.

// 24 steel furnaces · 1.8 MW draw · drops cleanly beside any starter main bus

01 — Blueprint Stats

MetricValue
Items / min900 iron plates
Belt saturation100%
Power draw1.8 MW
Footprint792 tiles
Entity count156 entities

02 — Blueprint String

This is a standard Factorio blueprint string. Copy it, open Factorio, and import it from your blueprint library to place the array immediately.

// 24-Furnace Iron Smelting Array
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

03 — Use Cases

Main bus starter base

Drop this array beside a 4-lane bus to fill an iron lane immediately. The output belt exits cleanly on the right side, making bus injection a single belt tap.

City block factories

The 792-tile footprint fits cleanly inside a standard 2×2 roboport city block. Tile two arrays to produce a red-belt's worth of iron plates.

AI-driven megabases

Deterministic throughput — exactly 15 items/sec, no variance — lets agents calculate downstream ratios without runtime sensors or feedback loops.

04 — How to Import Into Factorio

  1. 01

    Copy the blueprint string from the code block below.

  2. 02

    Open Factorio and load your save (or start a new game).

  3. 03

    Press Ctrl+B to open your blueprint library, then click the import icon.

  4. 04

    Paste the string with Ctrl+V and confirm. The blueprint appears in your library.

  5. 05

    Place it on a cleared area with electric power coverage. Feed ore to the inserters on the input side.

  6. 06

    Connect the output belt to your main bus iron lane. The array saturates the belt at full ore supply.

// tip

Not sure if the string is valid? Paste it into the Factorex Blueprint Decoder to inspect entity counts and dimensions before placing.

// blueprint rotation

Previous Week

Need circuits instead of plates? The week-2 feature covers a 900/min green circuit array with inline copper cable production.

Open Green Circuit Array

// factorex starter pack

Want 10 more optimized blueprints?

The Starter Pack includes 4 ratio-locked blueprints — iron smelting, copper smelting, science duplex, and expandable bus spine — all designed to work together from day one. No wasted inserters, no dead-end layouts.