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I want to fix up a red stone system in the Spawn Chunk so it's always running no matter how far i go, however i'm concerned that when i start building it a part of the system will fall outside the chunk which could break the system, acting unpredictably because the chunk a part of the system is in doesn't update.

i am wondering, is there a way to see where Chunks meet so that i don't build this system between the 2 chunks?

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up vote 23 down vote accepted

In 1.7.x and below, if you turn on the debug display by hitting F3, you will see x:, y: and z: rows.

In the x and z rows, look at the end of each line - it shows // c: number (number) after each one. The first number is which chunk you are in, and the second is which block in that chunk, from 0 - 15.

In 1.8+, the debug screen displays the chunk coordinates differently. They are on their own line formatted as x y z in Cx, Cy, Cz, with xyz ranging from 0 to 15.

Hopefully that helps.

Note: for your specific situation, I'll add that the spawn chunks are actually a 16x16 chunk area around the world spawn point, which can be exactly determined by throwing an item into the end portal from the end - the item will appear at the exact point of the world spawn. There are other ways to find your spawn point, but if you've killed the dragon this is the easiest way.

Your redstone device should be able to occupy any chunks in that area without any problems, as they all stay loaded no matter what.

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A more painfully complex explanation of finding edges is on the wiki, good job of making it simpler to understand! – Tim Post Aug 14 '14 at 5:52
The 1.8 snapshots feature a new debug screen. Chunk coordinates are displayed on a seperate line, formatted as x y z in Cx, Cy, Cz, with xyz ranging from 0 to 15. See – MrLemon Aug 14 '14 at 14:54
Thanks, adding that to my answer. – Johonn Aug 14 '14 at 16:44

If you have the Not Enough Items mod, you can press F9 a couple times and a chunk grid will be displayed. It's nice as it's very graphical and easy to check if you are outside of the boundary.

However, you do need to have Forge and the NEI mod installed.

Screenie I found on Imgur: enter image description here

If you hit F9 again, you will get an alternate view of this which adds a grid in between the chunks, making them very visible.

You can also use the F7 key to show where mobs spawn (if you want)

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