Structure Scanner

Structure Scanner is an item added by MC3DPrint.

Obtaining

Guidebook

Scanning Structures

The Structure Scanner captures any build as a reusable blueprint.

Right-click the first corner blockRight-click the opposite corner blockKeep a Blank Blueprint Disc anywhere in your inventory, then right-click the air to scan

The result is a written Blueprint Disc — portable, tradeable, and printable on any machine of the right tier.

Quartz gives the scanner its eyes; glass focuses the lens.

Each craft yields two blank discs. One disc holds one scan.

The printer never overwrites existing blocks — it only fills empty space. Clear the print area first, or the printer will skip occupied positions and build the rest.

Server operators can import WorldEdit .schem and Create / vanilla .nbt files straight onto discs with /mc3dprint import.

How do I get blueprints?

Two ways:

Scan your own builds with the Structure Scanner (right-click two corners, scan with a Blank Blueprint Disc anywhere in your inventory)Find curated written Blueprint Discs in village and exploration loot

Server operators can also import .schem / .litematic / .nbt files with /mc3dprint import.

In Creative, MC3DPrint can list every curated Blueprint Disc it ships, or just a small hand-picked launch set — your call. Toggle it in mc3dprint-common.toml:

[general]

allowAllDiscsInCreative

Cosmetic only — survival still finds every build as world loot either way.

The Structure Scanner caps each axis at 33 by default. Capturing something bigger? Set

[scanner]

unlockScannerSize = true

in mc3dprint-common.toml to scan up to the largest printable size (51 with a Tier 8 fabricator).

Some curated builds use another mod's blocks and only appear when that mod is installed. The Coppertide Park set (a geyser lagoon, drop tower, lazy river, glass serpentine, pendulum half-pipe, and four-lane racer) is built from MC Waterslides blocks: install that mod and the six park discs join creative and world loot; without it they stay hidden. Print costs derive from its recipes automatically.

Deconstruct Mode

Every printer and fabricator can run in reverse: select a region and the machine consumes it block by block, banking Filament Units into its docked spools (then any racks on the cable network).

To arm it: set two corners with the Structure Scanner, then sneak-click the machine. The region can't be wider than the machine's print footprint, and must be within 64 blocks.

Deconstructing credits a fraction of each block's winding value (deconstruct.yieldFactor, default 50%) at its exact tier — always less than winding the item yourself, so there's no free filament loop.

Winder-blacklisted blocks (planks, cactus…) recycle at zeroWater, crops and other itemless blocks clear for freeUnvalued blocks and non-empty containers are skipped in place — the machine never destroys what it can't value, and never touches stored items.

Toggle Print / Decon in the machine GUI (handing a region to a machine arms Decon automatically). The armed region shows as a red wireframe in the world, and the first job after arming ALWAYS needs the Start button — Auto never fires on a fresh region, so nothing dissolves by surprise. After that first Start, Auto resumes as a standing recycler for the region.

Jobs work top-down, pause on power loss without losing progress, and pause before removing a block when every spool is full — filament is never voided. Changing the region or mode cancels the job cleanly and re-arms the Start gate.