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Build Matter Reconstructor

CaptainGummiball edited this page Oct 25, 2026 · 1 revision

Matter Reconstructor

The Matter Reconstructor dissolves matter and rebuilds it as something else: other metals into gold or iron, coal blocks into diamonds, netherrack into netherite scrap. It never makes more than it takes.

  • Rules, not recipes: built in are any metal → gold (4 times the material in), any metal → iron (2 times), Coal Blocks → Diamond, and Netherrack + Quartz + Exotic Matter → Netherite Scrap. Data packs add more (quantaworks/reconstruction_rule, see For Mod Developers). The recipes pass the same balance check as every other recipe.
  • Patterns: every target needs its pattern once. Put the target and a blank Matter Pattern into the scan slots; the scan takes the target's scan energy (1 to 5,000,000,000 E, drawn from the buffer as the hatches bring it) and writes the pattern. Patterns go into the six pattern slots. Only targets whose pattern is there are made.
  • Not accepted: items with components (renamed, enchanted …).
  • Inside, the input dissolves in the first chamber, a violet stream of matter runs through the conduit and the target grows in the last chamber.

The example below has viewports along the middle of both side walls, so the line is seen from both sides. The Pattern Scanner is next to the controller, the input on the left near the front, the output on the right near the back, two Energy Hatches on the roof.

Rules

  • Size: 7 × 7 × 11 (width × height × depth).
  • Frame (edges and corners): Precision Casing only.
  • Walls: Precision Casing, Industrial Viewport, the Pattern Scanner (exactly one), plus the controller and ports.
  • Ports:
    • Item Input Port / Item Output Port.
    • Energy Hatch (tier 2 – 5): energy in, at most 8.
  • Inside: a line through the middle (centre of the cross-section) from front to back: one block of air, the Dissolution Chamber, five Matter Conduits, the Reconstruction Chamber, one block of air. Everything else is air.
  • Controller: the Matter Reconstructor Controller sits in the front wall (7 × 7) and faces out; the block right behind it must be inside.

Running it

Scan a pattern first, then feed the input. The screen shows energy, the scan, the pattern slots ("Ready, 2 patterns") and "No pattern: scan a target first" while the pattern is missing.

Common error messages

Message What to do
Wrong block at (position) (expected: dissolution_chamber / matter_conduit / reconstruction_chamber) Complete the line through the middle in this order.
Wrong block at (position) (expected: air) Nothing else inside.
Missing parts: pattern_scanner:1 Put one Pattern Scanner into a wall.
Too many ports of one kind: pattern_scanner:1 allowed Only one Pattern Scanner.
Too many ports of one kind: energy_input:8 allowed At most 8 Energy Hatches.
Structure too small ((size)) / Structure too large or not closed near (position) The plant is exactly 7 × 7 × 11.

Sight glass

Every wall block that is not on an edge may be Industrial Viewport (or any block a data pack puts into the tag quantaworks:multiblock/glass) instead of the casing. The plant works the same, and through the glass you see what happens inside while it runs. The example below has Industrial Viewport in the middle row of both side walls, along the line inside.

Step by step

The example below is 7 wide, 7 high and 11 deep. The example forms as shown (checked in the game when the pictures were taken).

Each step shows the plant from the front left after one more layer is placed (from the bottom up), and a top-down map of that layer: the back of the plant at the top, the front with the controller at the bottom. The letters match the parts lists.

All parts of the example:

Key Block Count
A Precision Casing 294
E Industrial Viewport 14
G Matter Conduit 5
H Energy Hatch (Tier 2) 2
F Dissolution Chamber 1
D Item Input Port 1
I Item Output Port 1
B Matter Reconstructor Controller 1
C Pattern Scanner 1
J Reconstruction Chamber 1

Step 1: Layer 1

Step 1: Layer 1

Top-down map of step 1

Parts in this step: Precision Casing (A) ×77

Step 2: Layer 2

Step 2: Layer 2

Top-down map of step 2

Parts in this step: Matter Reconstructor Controller (B) ×1, Precision Casing (A) ×31

Step 3: Layer 3

Step 3: Layer 3

Top-down map of step 3

Parts in this step: Item Input Port (D) ×1, Item Output Port (I) ×1, Pattern Scanner (C) ×1, Precision Casing (A) ×29

Step 4: Layer 4

Step 4: Layer 4

Top-down map of step 4

Parts in this step: Dissolution Chamber (F) ×1, Industrial Viewport (E) ×14, Matter Conduit (G) ×5, Precision Casing (A) ×18, Reconstruction Chamber (J) ×1

Step 5: Layers 5–6 (identical)

Step 5: Layers 5–6 (identical)

Top-down map of step 5

Place this layer 2 times on top of each other.

Parts in this step: Precision Casing (A) ×64

Step 6: Layer 7

Step 6: Layer 7

Top-down map of step 6

Parts in this step: Energy Hatch (Tier 2) (H) ×2, Precision Casing (A) ×75

Finished

The finished Matter Reconstructor

In operation

Matter Reconstructor in operation

Tips

  • Gold from iron costs four iron ingots per gold ingot plus the energy – the reconstructor is a converter, not a source.
  • A scan is a one-time cost per target; keep the pattern.

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