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How to Make a Dual Cobblestone Generator in Minecraft

Are you sick of having to slowly mine cobblestone from your cobblestone generator? Consider making a dual (or double) cobblestone generator! A dual cobblestone generator is a lot more efficient. You're able to alternate between the two blocks so you don't have to wait for cobblestone to generate one at a time. This is especially useful on Skyblock since there are no other sources of cobblestone. Move on to Step 1 below to get started.


  1. Gather the materials you will need. You're going to need a bucket of lava, two buckets of water, and 41 non-flammable blocks. You can reuse one bucket for the lava and water.
    2018 08 05_07.56.29.png
    • Stone or stone brick are good to use. You could use cobblestone, however it may be a little confusing to tell where you have to mine because the generated cobblestone will blend in.
  2. Find a space that is 6x6 blocks large and at least 3 blocks high. The image above shows the area you will be placing blocks on.
    2018 08 05_08.13.13.png
  3. Make an L shape on the ground by placing 3 blocks across and 3 blocks down.
    2018 08 05_07.57.18.png
  4. Mirror the L shape on the other side.
    2018 08 05_07.57.44.png
  5. Add a second layer of blocks on top of the L shapes, but do not place a block in the centre.
    2018 08 05_07.58.30.png
  6. Place 4 blocks opposite one of the L shapes to create a wall.
    2018 08 05_07.59.16.png
  7. Add 2 more blocks to the end of the wall.
    2018 08 05_07.59.31.png
  8. Repeat Steps 6 and 7 for the other side.
    2018 08 05_07.59.59.png
  9. Put 1 block at the end of the crevice on one side. Repeat this on the other side.
    2018 08 05_08.00.28.png
  10. Place 2 blocks on the top of one side, with 1 block covering the crevice. Repeat this on the other side.
    2018 08 05_08.01.07.png
  11. Add 2 blocks to the top layer to create a 1 block hole in the top.
    2018 08 05_08.01.20.png
  12. Place a bucket of water at the end of one of the sides. Repeat this on the other side.
    2018 08 05_08.02.22.png
  13. Place the bucket of lava in the top hole.
    2018 08 05_08.03.12.png
  14. Your cobblestone generator is finished! You can mine cobblestone from one side, then move onto the next while the other one is still generating.
    2018 08 05_08.03.42.png

from How to of the Day