Tutorial: Fully Automatic Cobble Farm for 1.11/1.12/1.13 (160k/h)

uses TNT duping to generate cobble stone items. Can be rebuilt into a TNT dispenser version.
yields ~135 items per TNT and 162,000 items/h
works in 1.12.2, works in 1.13.1 with a dispenser
built in 1.11
won't work in bedrock edition and might not work on modded servers (could depend on the spigot plugins - just don't use anything redstone related on spigot servers to be sure)
world download: www.mediafire....
old farm: • TNT cobblestone farm
materials:
54 cobblestone
72 lava
some water buckets
2 detector rails
58 sticky pistons
95 pistons
~600 building blocks
3 stone slabs
1 TNT
21 obsidian
114 rs dust
1 lever
3 iron doors
94 repeaters
242 glass
18 rs lamp
4 comparators
18 hoppers
24 droppers
9 slime blocks
168 ice (packed or normal)
80 observers
1 minecart
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