Forge 1.20.1 · NeoForge 1.21.1–26.2 · Free & open source

Wind anything.
Print anything.

MC3DPrint turns matter into Filament Units, and filament back into matter. Wind copper, print gold. Wind sculk, print diamonds. Scan a whole castle and print that too. No creative mode, no commands.

Download the mod Read the guide

WorldEdit for survival · MIT licensed · No paywalls, ever.

What it does

Every material is the same material.

🧵

Turn matter into matter

Wind any material into Filament Units, then print anything else at that tier or below. Ten sculk becomes three diamonds. A spare elytra becomes four netherite ingots.

📡

Scan any build

Point the Structure Scanner at anything you've built (every block, every state, every connection) and capture it to a Blueprint Disc.

🖨️

Print it anywhere

Drop the disc in a printer, feed it power and filament, and watch your build reconstruct block by block, exactly as scanned.

🏗️

Tiers T1–T8

Single-block printers for small builds, scaling up to N×N multiblock fabricators that lay down entire bases.

💿

Curated blueprints

Ships with a library of ready-to-print builds (castles, farms, libraries) and you can re-burn copies whenever you like.

🧪

Resins & upgrades

Modifiers that grow crops, fill chests, or speed the print. Slot in upgrades to tune speed, efficiency, and capacity.

The exchange rate

Wind the thing you have. Print the thing you want.

Filament Units are denominated by tier, not by item. Wind a material and you get filament at that material's tier; spend it and you can print anything at that tier or below. So within a tier, matter is interchangeable.

Wind this Print this Tier

3 copper ingots → 2 gold ingots T2

4 end stone → 1 iron ingot T2

5 redstone → 1 glowstone T3

5 blaze rods → 4 emeralds T4

10 sculk → 3 diamonds T5

1 spare elytra → 4 netherite ingots T6

Ratios shown at exact break-even, which takes four Efficiency modules and so a Tier 4 or higher printer, since upgrade slots scale with tier. Below that you always pay a markup, so printing costs a little more than the matter is worth. That markup is the reason this can never become a duplication exploit: filament spends downward, never up, and winding is strictly exact-tier.

How Item Mode works →

How it works

Three steps, start to finish.

Wind it in

Feed any valued item into the Filament Winder. It becomes Filament Units denominated at that item's own tier.

Pick a template

Drop an item into the printer to make copies of it, or load a Blueprint Disc (scanned or found) to build a whole structure.

Print it out

Supply RF and let it run. A spool pays for any template at its own tier or below, so filament spends downward, never up.

See the full walkthrough →

See it in action

Layer by layer, exactly as scanned.

Feed the printer power and a filament spool, drop in the disc, and your build reconstructs in place, every block state and connection intact.

A build printing block by block in Minecraft

From the library

Builds ready to print.

Browse the gallery →

For the community

Built something great? Add it to the mod.

Drag in your .blueprint file, preview it in 3D right in your browser, and submit it for review: no GitHub account, no coding required. If it's a fit, it ships with the mod for everyone.

Submit your build

Wind anything.Print anything.