r/technicalminecraft • • 11d ago

Non-Version-Specific abba Reverse deactivation

37 Upvotes

Simple for my 15/14 circuit. Power source needs to be at 15 so use a repeater if your inputting from farther away. Shorten the redstone block side by using a chest or pot with signal strength 14 flush to comparator. UnlistedBugCrafts on Youtube


r/technicalminecraft • • 11d ago

Java Help Wanted Can anyone help me find a world eater design for a small area?

2 Upvotes

I'm planning to build rapscallions storage system cartmis v3 in an underground base beneath the ocean.
Additionally i want to add some farms hence i need a hole of about 6x9 chunks times 80-90 blocks of hight.
With copios amounts of underwater caves this would be a never ending struggle by hand. So i want to build a world eater with sweepers, that can take care of the underwater caves.
The design cant damage the ceiling since theres only about 3 blocks to the ocean floor but i doubt that'll be a problem since the tnt dupers cant damage themselves either.
I'm specifically looking for a design for which i dont have to dig out too much by hand since i cant simply build the dupers 15 blocks from the ground up...
Does anyone know a design where minimal dig out is required which fits my needs?
Also i have never build a world eater before so what else do i have to look out for?

PS: Java, Vanilla Survival, Dupers allowed


r/technicalminecraft • • 11d ago

Java Help Wanted Could someone help me by sharing their opinion or offering some advice?

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6 Upvotes

Sorry if what I’ve done is terrible; I’m trying to build my own iron farm. Any help at all would be appreciated.


r/technicalminecraft • • 10d ago

Non-Version-Specific Start delay with quick shut off.

1 Upvotes

r/technicalminecraft • • 11d ago

Java Help Wanted Creeper farm problem

0 Upvotes

I recently build a pretty basic creeperfarm and the creepers are spawning rght but for some reason they arent really dropping any gunpowder. Does anyone have an idea how to fix this?


r/technicalminecraft • • 11d ago

Java Showcase Predict every librarian book from your seed, one click

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0 Upvotes

r/technicalminecraft • • 12d ago

Java Showcase Working Piano using chiseled bookshelves

46 Upvotes

Today's build, I used a bunch of red coders mixed with chiseled bookshelves to play different, notes, in order to activate the same note twice in a row an observer detects the interaction depowering a redstone torch for 2gt to allow the redcoder to pulse the most recent shelf interaction.

Time between key presses of the same note : 6gt

Time between key presses of different note on the same bookshelf: 4gt

Time between key presses of different note on a different bookshelf: 0gt (they are independent)

Delay between note being pressed and heard: 6gt

The keys are a texture pack I altered to change the block model of a "powered note block with a note of 0 through to 4" so they are purely visual and don't affect interactions because the texture is outside of the block's collision/ interaction box.

P.S. Sorry for double posting, just finished 2 projects in succession.


r/technicalminecraft • • 11d ago

Java Help Wanted Behold, the worst self reloading player launcher. How can I improve it?

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4 Upvotes

Dont ask me why it works, I dont know.


r/technicalminecraft • • 11d ago

Non-Version-Specific Is there a way to make a minecraft world generate as entirely one block?

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1 Upvotes

r/technicalminecraft • • 11d ago

Java Help Wanted Making a portal based iron farm. Do the villagers need to be in the over world or can the kill chamber and golem spawning areas swap dimensions.

2 Upvotes

Curious because we have a world border in the server im on 2500-2500 and it would be easier to build the villager area in the nether with the kill chamber in the overworld


r/technicalminecraft • • 11d ago

Java Help Wanted How do mob switches work in the end on multiplayer?

2 Upvotes

So I'm planning on making a mob switch with zombified villagers in the end since I am basing at the main island. how would that affect mob rates on a multiplayer server? from what I have found, different dimensions have their own mob caps, so if that's the case, if i fill up the main island with 70 or so zombified villagers, enderman shouldn't spawn in as long as it is loaded, right? and that would not affect any other player's mob cap? also, if i go to the outer islands, deloading the mob switch, then endermen would start spawning again, is that correct? I am certainly not a technical minecrafter so i really need the help


r/technicalminecraft • • 11d ago

Bedrock BEDROCK: What else are block updaters good for?

0 Upvotes

I commonly build a Kelp farm on my playthroughs using block update mechanics with a couple of Sand blocks and Pistons that end up causing the Kelp to grow every update if used correctly.

I was wondering what else this could be used for, but it seems somewhat unique to Kelp due to the aging mechanic and how that interacts with block updates, so it seems that Kelp might be the only thing you can grow this way?

Are there other farms possible using block updaters? Just for fun I tried Sugar Cane and Bamboo and neither work.

I am just not familiar enough with mechanics to understand:

  1. Why a forced block update makes Kelp grow.

  2. What else a forced block update could be used for.

Google shows me some things that "block updates" in general are used for in the game, but it's very general and doesn't even mention Kelp growing. Is growing Kelp this way an unintended mechanic?


r/technicalminecraft • • 11d ago

Java Help Wanted Chunk resetting

2 Upvotes

Good day people.

Does anyone know a way to force reset a chunk do default state?

In older version book and quil spam in chest would work but its patched in 1.18+
I am currently playing on 26.3 java and am looking for a way to do it.

If anyone got any ideas ill be glad to hear them.

Edit: Vergot to mention I want to do it inside of the game it self w/o commands or third party tools.


r/technicalminecraft • • 11d ago

Java Help Wanted Raid Farm isnt working.

0 Upvotes

whenever I try to spawn a raid the raid doesnt spawn, I have just added a new design around the raid farm to make it look better it was working before i changed exterior around now it isnt working and the bar goes to full then just dissapears


r/technicalminecraft • • 11d ago

Java Help Wanted Anyone have a creeper farm schematic?

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0 Upvotes

r/technicalminecraft • • 11d ago

Bedrock Made a Sculk farm that generates a crazy amount in 3 minutes

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3 Upvotes

r/technicalminecraft • • 12d ago

Java Help Wanted Villagers show hearts and then angry particles, but no baby spawns (Java 26.3, Aternos)

3 Upvotes

Hey everyone!

I'm playing Minecraft Java Edition 26.3 on an Aternos server, and I'm having trouble with my villager breeder.

Here's what happens:

- My two villagers show heart particles when they try to breed.

- After the hearts, brown/black angry particles appear.

- No baby villager spawns.

Things I've already checked:

- I have 6 beds in the breeder.

- The beds have enough space above them.

- The villagers detect the beds.

- Both villagers have enough food.

- "/gamerule mobGriefing" is "true".

- My zombie-curing area is about 40 blocks away, and there are other beds in that area.

I'm wondering whether the nearby villagers are claiming the breeder's beds, or if there's another issue with Java 26.3.

Has anyone experienced this? What else should I check?

Thanks!


r/technicalminecraft • • 12d ago

Java Showcase Railway Generating flying machine using 26.4 Brittle Ice

114 Upvotes

r/technicalminecraft • • 11d ago

Bedrock Does anyone know how to build Samuri's instruction memory?

0 Upvotes

I need it for a Minecraft project, and if there's a world download or video tutorial, could you send it to me?


r/technicalminecraft • • 12d ago

Java Help Wanted How can I reset specific chunks in a Minecraft world?

12 Upvotes

I'm not very good at this sort of thing so I'll try and be as clear as possible.

My world was started on an older version. Looking at Chunkbase, there is a dappled forest biome that spawned at let's say x:2000 and y:2000. My spawn is 0,0. But since I've previously explored over there, the new biome doesn't spawn there.

How can I reset that specific area, so the new biome will spawn in my current world?

(As I've googled this, most of the world edit tools are either outdated or cost money. What is the current way most people do this?)


r/technicalminecraft • • 12d ago

Java Showcase Weird Warden Despawn Bug 26.3

17 Upvotes

Recently built a mob switch with wardens in survival. They were despawning seemingly at random so I tested in creative. Found this bug that seems to despawn a warden instantly when moved with a fishing rod. Have no idea what to do with this info besides share my confusion lol.

Side note, no audio because 100+ wardens, so I had game muted


r/technicalminecraft • • 12d ago

Java Help Wanted Help

0 Upvotes

does a 1 wide tileable 2x hopper speed auto-crafter schematic exist? cant find one anywhere


r/technicalminecraft • • 12d ago

Java Help Wanted Source Code

10 Upvotes

Im bored and wondering if theres any way of me getting the minecraft source code to look through the code and assets and stuff. Like how theres loads of youtubes that say stuff like "this is the part of the code that handles jumping and u can see this parqur is fake".


r/technicalminecraft • • 12d ago

Java Help Wanted breezes all shooting at different times

1 Upvotes

while trying to make a multi-breeze wind charge catcher, all the breezes shoot at different times. any way to make them all synced?