How to Make an Infinite Cobblestone Generator in Minecraft

Written by Jack Lloyd

Last Updated: July 31, 2024 Approved

Minecraft does not like to obey the laws of physics, and the law of conservation of mass is not an exception. Cobblestone generators in Minecraft will generate cobblestone indefinitely. They prove to be very helpful for collecting building materials and a necessity for surviving in SkyBlock. Here is a simple guide on making a cobblestone generator.

Steps

Download Article

1
Gather your materials. You’ll need 3 iron for a bucket, a source of lava, and a source of water. Mine iron underground or look for it on the walls of a cave. Smelt the iron in a furnace and then craft a bucket. Lava sometimes appears in pools on the surface, but you’ll need to get underground below Y:9 for them to be common.
- Craft two buckets if you want to carry both the lava and water at the same time.
- Some cobblestone (or another non-flammable block) can be used to reduce the chance of the generated cobblestone falling in lava.
- 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
Dig a one block deep hole and a two block deep hole next to it. Place the water in the one block deep hole so that it flows into the two block hole.
- If the water turns the lava into obsidian, you may not have dug the second hole two blocks deep.
Advertisement
3
Leave a gap of one block and dig another one block deep hole. Place your lava here.
4
Break the block separating the lava and water. After about a second, there will be a hissing sound and a cobblestone block will form.
5
Continue breaking the cobblestone. The generator will continue to produce infinite amounts of cobblestone.
6
Improve your generator. Cover up the lava and water so that you don’t fall into it with non-flammable blocks (cobblestone, dirt, clay, etc.). This will also help prevent cobblestone you mine from being burned by the lava. Break a block in front of the generator to stand in so that you can mine and pick up your cobblestone more easily.

Community Q&A

Search

Add New Question

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

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 18 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

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 34 Helpful 34
Question

How do I do it if Tile Drops (console editions only) is disabled?

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 53 Helpful 31

See more answers

Ask a Question

200 characters left

Include your email address to get a message when this question is answered.

Submit

Video

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 7 Not Helpful 2

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!

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, it's safer to keep it lower than your stuff.

Thanks
Helpful 13 Not Helpful 0
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 10 Not Helpful 1