Each Minecraft world is divided into small 16×16 segments that are 256 blocks tall. They are called chunks and do not show up normally in the game. By pressing F3+G, players can look at the borders of the chunks in their vicinity.
When a player goes a certain distance away from a chunk, the chunk will no longer load, and the farms and other machines in it will stop working until the player comes back in its range. However, with a chunk loader set up in the same chunk as their farm, it will stay loaded no matter where the player is, and the farms will work all the time.
A guide to making a chunk loader in Minecraft

Items required to make a chunk loader
- Eight droppers
- Two redstone comparator
- Two redstone torch
- Two redstone lamp
- Four observer
- Obsidian blocks for the Nether portal
- Flint and steel to light the portal
- Solid blocks for building
- Four hoppers
- Four rails
- Four minecarts with hoppers
Procedure
Step 1: Create a nether portal two blocks above the ground.
Step 6: Cover the open parts of both portals with blocks on both sides.
The chunk loader is now finished, and to use it, players need to place any item on the lowermost dropper. The item will be sent back and forth through the portal, and this will always keep the chunk loaded.
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