How To Make An Infinite Cobblestone Generator In Minecraft - WikiHow

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Terms of Use wikiHow is where trusted research and expert knowledge come together. Learn why people trust wikiHow How to Build Your Own Minecraft Cobblestone Generator PDF download Download Article Get all the cobblestone you’ll need for Skyblock or large builds Co-authored by Zac Churchill and Amy Bobinger, BA

Last Updated: January 8, 2026 Fact Checked

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  • Basic Infinite Cobblestone Generatօr
    • |
  • Expanded Cobblestone Generatօr
    • |
  • FAQs
    • |
  • Video
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  • Q&A
    • |
  • Tips
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  • Warnings
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This article was co-authored by Zac Churchill and by wikiHow staff writer, Amy Bobinger, BA. Zac Churchill is a Minecraft Specialist based in Davidson, North Carolina. Zac has played Minecraft for over 10 years and has extensive knowledge of how to play Minecraft and how the game has changed over the different versions. Specifically, Zac has expert experience in survival worlds, large builds on creative mode, and server design/upkeep. He graduated in 2023 with a BA in Sociology and English from Tufts University. There are 15 references cited in this article, which can be found at the bottom of the page. This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources. This article has been viewed 631,897 times.

Cobblestone is pretty common in Minecraft, but if you need a lot—or if you’re playing in an area with limited resources, like Skyblock—it can help to have an infinite cobblestone generator. Making a basic cobblestone generator is super easy, and it doesn’t take up much space. But you can also expand the generator if you need to make more cobblestone at once. We’re here with everything you need to know to make your own cobblestone generator.

Quick Steps

  1. Get a bucket of lava and a bucket of water.
  2. Dig a 1-block deep hole and a 2-block deep hole next to it.
  3. Place water in the 1-block deep hole.
  4. Skip a block, then dig another 1-block deep hole.
  5. Place lava in the new hole.
  6. Break the block between the two holes.
  7. Mine the cobblestone as it appears.

Steps

Section 1 of 3:

Basic Infinite Cobblestone Generatօr

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  1. Step 1 Gather a bucket of lava and a bucket of water. 1 Gather a bucket of lava and a bucket of water. If you don’t have any buckets, gather 6 iron blocks—3 for each bucket. You’ll also need to find a source of water and a source of lava.[1]
    • You can find iron underground or on the walls of a cave.
    • Smelt the iron in a furnace to create iron ingots, then craft a bucket by placing 3 iron ingots in a V shape—two on the outside edges of the center row and one in the center block of the bottom row. Repeat for a second bucket.
    • Gather lava from a lava pool on the surface or by going underground below Y:9.
    • If you are playing SkyBlock, you may have a block of ice instead of a water bucket. You can place the ice down and break it to get water.
  2. Step 2 Dig a 1-block deep hole and a 2-block deep hole next to it. 2 Dig a 1-block deep hole and a 2-block deep hole next to it. Place the water in the 1-block deep hole. When you do that, it will flow into the 2-block deep hole.[2]
    • Be sure to find a flat area to create your generator—you’ll need at least a 4x2 area of flat land, but if you want to expand your generator later, it will need to be even bigger than that.[3]
    • If you prefer, you can dig a 4x1 hole, then make the second block in the hole 1 block deeper. The generator will turn out exactly the same.[4]
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  3. Step 3 Leave a gap of one block and dig another 1-block deep hole. 3 Leave a gap of one block and dig another 1-block deep hole. Skip the block closest to the 2-deep hole with water in it, then dig a 1-block hole on the other side of it. Place your lava in the new hole you just dug.[5]
    • The simplest way to arrange your generator is in a 4x1 row, but you can also make an L-shaped generator if you’d like—just put the lava block off to one side so the water and lava meet in a corner.[6]
  4. Step 4 Break the block separating the lava and water to create cobblestone. 4 Break the block separating the lava and water to create cobblestone. After about a second, there will be a hissing sound, and a cobblestone block will form. Break the cobblestone to gather it.[7]
    • If the water turns the lava into obsidian, double-check that you dug the second hole two blocks deep.
    • If you’re concerned about falling into the lava, dig a hole next to the cobblestone block and stand in that to mine.[8]
    • You can also cover up the lava and water from non-flammable blocks like cobblestone, dirt, or clay. This will keep you from falling into it and will also help prevent the cobblestone from being burned by the lava.
  5. Step 5 Continue breaking the cobblestone to get as much as you want. 5 Continue breaking the cobblestone to get as much as you want. Every time you break the cobblestone block, a new one will appear.[9]
    • The generator is a little slow, but it will produce an infinite amount of cobblestone—so the only real limit to how much cobblestone you can mine from the generator is the amount of time you’re willing to spend.
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Section 2 of 3:

Expanded Cobblestone Generatօr

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  1. Step 1 Extend the generator by as many blocks as you’d like. 1 Extend the generator by as many blocks as you’d like. If mining the blocks is too slow, try digging out another generator next to the first one. You can even place 3 or 4 rows of generators next to each other.[10]
    • We’ll show you how to make a generator that creates 4 cobblestone blocks at a time—but feel free to customize the size to whatever you need.
  2. Step 2 Extend your 2-block deep hole by 3 blocks. 2 Extend your 2-block deep hole by 3 blocks. Dig a 3-block long, 2-block deep trench in a straight line, starting from the 2-block deep hole in your generator that’s filled with water. You’ll have a 4-block long, 2-block deep trench when you’re finished.[11]
    • Be sure this row is 2 blocks deep. If it’s only 1 block deep, the flowing water may turn the lava source blocks into obsidian.
  3. Step 3 Dig trenches beside the remaining 3 blocks. 3 Dig trenches beside the remaining 3 blocks. Dig 3-block long, 1-block deep trenches straight out from the remaining 3 blocks in your generator. Place these trenches so they’re lined up with the first trench.[12]
    • You’ll end up with a 4x4 square.
  4. Step 4 Place water in the row of blocks next to the original water block in your generator. 4 Place water in the row of blocks next to the original water block in your generator. Use a water bucket to place water in each block. It won’t spread across this row automatically.[13]
    • The water will pour into the second, 2-block deep row of blocks.
  5. Step 5 Place lava in the row of blocks next to the original lava block in your generator. 5 Place lava in the row of blocks next to the original lava block in your generator. Use a lava bucket to place water in each block. Be careful not to fall into the lava as you’re placing it.[14]
  6. Step 6 Stand on one side of the generator and mine the cobblestone as it appears. 6 Stand on one side of the generator and mine the cobblestone as it appears. The water and lava will flow into each other all the way down your expanded generator, creating a 4x1 row of cobblestone. Stand next to the generator and mine down the row as the cobblestone is created.[15]
    • This is faster than waiting for 1 block at a time to appear, so it’s a good option when you need a lot of cobblestone at once—like if you’re building in Skyblock.
  7. Step 7 Place hoppers and chests under the generator to mine automatically. 7 Place hoppers and chests under the generator to mine automatically. Dig two blocks deep under your generator. Place a row of hoppers under the generator, then a row of chests under the hoppers. The cobblestone will go into the treasure chests as it’s created.[16]
    • To automatically farm the cobblestone, you’ll need to use an auto-clicker.
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Section 3 of 3:

FAQs

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  1. 1 Why does my cobblestone generator keep making obsidian? Make sure the second hole in your generator is 2 blocks deep. If it’s only one block deep, the water and lava will interact to create obsidian.
  2. 2 How many blocks do you need to make a cobblestone generator? To make a basic generator, you need a 4x1 piece of flat ground, a bucket of water, and a bucket of lava.
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Community Q&A

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  • Question When I built the first one, all of the lava kept melting the cobble when I broke it. How can I stop this from happening? MelodyTongyu MelodyTongyu Community Answer My suggestion is to dig a hole beside the cobble (where you won't touch any lava or water) and jump in before you mine the cobble. Then, walk into the cobble as close as you can and stay there. When you mine the cobble, it's more likely to go into your inventory. You can also use a hopper under the generator so that when you mine it, the cobble will go into the hopper. Thanks! We're glad this was helpful. Thank you for your feedback. If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow Yes No Not Helpful 20 Helpful 77
  • Question Could I place cactus so that when I push the piston, the cobblestone is moved next to the cactus, then the cactus makes it break? CaptianYaya CaptianYaya Community Answer No. This will break the cactus instead of the cobblestone. Thanks! We're glad this was helpful. Thank you for your feedback. If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow Yes No Not Helpful 35 Helpful 35
  • Question How do I do it if Tile Drops (console editions only) is disabled? Frail Hunter Frail Hunter Community Answer Enable them or use a different version than you're currently on. Thanks! We're glad this was helpful. Thank you for your feedback. If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow Yes No Not Helpful 55 Helpful 32
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Tips

  • It's best to keep the generator relatively close to your house so that you don't lose all of your precious cobblestone if you're attacked between the generator and your home. Thanks Helpful 0 Not Helpful 0

Tips from our Readers

The advice in this section is based on the lived experiences of wikiHow readers like you. If you have a helpful tip you’d like to share on wikiHow, please submit it in the field below.
  • If you want to have the generator in your home, build it in a room that's several blocks under your home. However, don't put it near your house if your house is made of wood.
  • Try to keep a bucket on you. After the cobblestone’s formed, you can mine the cobble without it burning. Just make sure not to put the chest next to the lava!
  • Try using fences to avoid the lava while attempting to mine the cobblestone.
  • Be careful not to fall in the lava unless you have really good armor.
Submit a Tip All tip submissions are carefully reviewed before being published Name Please provide your name and last initial Submit Thanks for submitting a tip for review! Advertisement

Warnings

  • Avoid building the generator on a surface that's above your house or other important items. Lava travels downhill, so if the generator breaks, the lava could run down and set your house or valuables on fire. Thanks Helpful 0 Not Helpful 1
  • Make sure your generator is away from trees and wooden buildings. The lava can set them on fire from further than you'd think, and you may accidentally spark a wildfire. Thanks Helpful 0 Not Helpful 0
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References

  1. ↑ https://youtu.be/apwZ7nYsI5s?t=46
  2. ↑ https://youtu.be/apwZ7nYsI5s?t=75
  3. ↑ https://youtu.be/apwZ7nYsI5s?t=54
  4. ↑ https://youtu.be/apwZ7nYsI5s?t=64
  5. ↑ https://youtu.be/apwZ7nYsI5s?t=81
  6. ↑ https://youtu.be/zxxVjKKBy8g?t=88
  7. ↑ https://youtu.be/apwZ7nYsI5s?t=87
  8. ↑ https://youtu.be/apwZ7nYsI5s?t=98
  9. ↑ https://wiki.sportskeeda.com/minecraft/how-to-make-cobblestone-generator-minecraft
More References (7)
  1. ↑ https://youtu.be/apwZ7nYsI5s?t=110
  2. ↑ https://youtu.be/apwZ7nYsI5s?t=113
  3. ↑ https://youtu.be/apwZ7nYsI5s?t=113
  4. ↑ https://youtu.be/apwZ7nYsI5s?t=121
  5. ↑ https://youtu.be/apwZ7nYsI5s?t=124
  6. ↑ https://youtu.be/apwZ7nYsI5s?t=126
  7. ↑ https://youtu.be/apwZ7nYsI5s?t=130

About This Article

Zac Churchill Co-authored by: Zac Churchill Minecraft Specialist This article was co-authored by Zac Churchill and by wikiHow staff writer, Amy Bobinger, BA. Zac Churchill is a Minecraft Specialist based in Davidson, North Carolina. Zac has played Minecraft for over 10 years and has extensive knowledge of how to play Minecraft and how the game has changed over the different versions. Specifically, Zac has expert experience in survival worlds, large builds on creative mode, and server design/upkeep. He graduated in 2023 with a BA in Sociology and English from Tufts University. This article has been viewed 631,897 times. 2 votes - 100% Co-authors: 49 Updated: January 8, 2026 Views: 631,897 Categories: Minecraft Mechanisms In other languages Spanish Chinese Italian Russian German French Indonesian Japanese
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Reader Success Stories

  • Tyler Redding

    Tyler Redding

    May 5, 2016

    "The piston cobblestone generator really helped because with just a few red stones, I made a castle by using the..." more
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Did this article help you?

Yes No Advertisement Cookies make wikiHow better. By continuing to use our site, you agree to our cookie policy. Zac Churchill Co-authored by: Zac Churchill Minecraft Specialist Co-authors: 49 Updated: January 8, 2026 Views: 631,897 100% of readers found this article helpful. 2 votes - 100% Click a star to add your vote Tyler Redding

Tyler Redding

May 5, 2016

"The piston cobblestone generator really helped because with just a few red stones, I made a castle by using the..." more Barbara Olsen

Barbara Olsen

Nov 17, 2019

"After trying and trying to make a cobblestone generator, I stumbled upon this article. Within a couple of minutes,..." more Anonymous

Anonymous

Jan 21, 2017

"Tried it a few months ago, and it worked. Recently, its been making obsidian instead." Mark Oberlander

Mark Oberlander

Feb 22, 2017

"Very nice, would like to see more like this." Spicy Viel

Spicy Viel

Sep 30, 2020

"This really helped me a lot. Thank you." Share yours! More success stories Hide success stories

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