Table of Contents
Who this is for: Minecraft players who want unlimited cobblestone for building projects without constantly mining stone.
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Basic Cobblestone Generator Setup
A cobblestone generator exploits Minecraft’s physics where flowing water meets flowing lava to create cobblestone blocks. You’ll need just two buckets – one filled with water and another with lava – plus some building blocks to contain the flows.
Simple 3×1 Trench Method
Dig a straight trench that’s 3 blocks long and 1 block deep. Place your water bucket at one end and lava at the opposite end. The magic happens in the middle block where these two liquids meet, instantly forming cobblestone that you can safely mine without destroying your generator.
Advanced L-Shaped Design
For better efficiency, try an L-shaped generator. Create a corner where water flows down one arm while lava flows down the perpendicular arm. This design gives you easier access to mine the cobblestone while keeping the source blocks protected from accidental destruction.
Safety Tips and Troubleshooting
Always place water before lava to avoid accidents. If you get obsidian instead of cobblestone, your water isn’t flowing properly – it needs to be moving water, not a static source block. Keep a water bucket handy as emergency fire protection when working with lava.
Automation Possibilities
Once you master the basics, consider adding hoppers underneath to collect dropped cobblestone automatically, or pistons to push newly formed blocks into collection systems. Some players build massive cobblestone farms using redstone contraptions that can generate thousands of blocks per hour.
Whether you’re building castles or need materials for massive construction projects, mastering cobblestone generation opens up endless building possibilities in your Minecraft adventures.
TL;DR
Dig a 3-block trench, place water at one end and lava at the other – they’ll create cobblestone in the middle block that you can safely mine and repeat infinitely.
