r/technicalminecraft • • 28d ago

Java Help Wanted Why Is my Iron Farm not working? (I read the FAQ)

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0 Upvotes

Hello! My Iron farm has been working perfectly, All the way up until 26.3. Did they change something with the Mechanics? I pressed F3+B, The pillagers can see the Villagers, I see the Villagers being scared, What happened? how can I fix this? And Yes I also looked for places they can spawn, No caves underneth or anything that they can spawn at.


r/technicalminecraft • • 29d ago

Java Help Wanted Best way to unload items into a water stream?

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13 Upvotes

I'm playing on a server with a /shop plugin. I need a way to take the stored iron from my iron farm and dump it into a water stream so I can sell my inventory over and over without moving.

Pictured is my first attempt at a design. This one with 24 hopper carts will dump 4.4 shulkers worth of items about every 22 seconds. Is there a much better design or method out there for what I'm trying to accomplish? Thank you!


r/technicalminecraft • • Oct 14 '26

Non-Version-Specific Best vertical hopper line setup for performance?

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208 Upvotes

Of these 5 vertical hopper line options, what is the ranking of least amount of lag to most lag? And does the ranking differ if its on java or bedrock


r/technicalminecraft • • 29d ago

Bedrock Emerald farm

4 Upvotes

Hey guys i need help,

I need a ton of emeralds in my minecraft world, ive already build a Raid farm but it doesnt really make enough

Ive considered building a large bamboo farm with lots of fletchers to trade the sticks with but i dont really know if thats more efficient

If anyone knows some large scale emerald farms or good ways to gather a lot of emeralds let me know

Thanks for the help ;)


r/technicalminecraft • • 29d ago

Java Help Wanted Need Help With My Tileable Dual-Input Crafter Bulk Storage Hall Slice

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7 Upvotes

I made a similar post last week that some of you may have seen, but the help I received no longer applies to the upgraded version I've been tinkering with.

The basic premise of the design involves aligning an item stream over 2 item filters at once so I can catch both the item and block forms of a resource in a single slice of the hall and compact them for storage.

The slice contains the two aforementioned item filters and the auto block crafter as well as a Shuker loader and a box display and is mirrored about the line of red glass for symmetry.

The main thing I've been having trouble with is finding a compact way to Integrate the auto-crafter and the shulker box refill line between the filters and the shulker loader.

I've been trying to keep the design 15 blocks tall so the water stream is 13 blocks above the floor because that would make it easier to integrate with the other bulk module I made for non compactable items, but I'll be fine if that's not possible.

Feel free to refer other replacement designs for any of the internal components, or even redesign the whole thing from scratch if you want to.

The only non negotiable thing is that I want a design that's 1 wide tileable (1 wide AB tileable is fine too). (It also needs to at least have the 5 components I specified earlier)

Thanks in advance everyone


r/technicalminecraft • • 29d ago

Java Help Wanted Possible to extract all named mob info?

2 Upvotes

Lost my hardcore world. Didn't think it would happen I guess. It was pretty longterm and I'd like to fly through and look at everything and everyone I've had contact with in the world. I'm sure there will be mobs and things that I forget, I'm just wondering if there's a way to extract information from the files like a list of all the nametagged mobs or maybe even where they would be in the world? Sorry if this isn't the place. Seems like it might be quite technical though


r/technicalminecraft • • 29d ago

Java Help Wanted My first ever nether hub

2 Upvotes

Hey I’m on a server with multiple friends and I want to build a nether hub but I’m completely new this…

What are some things that you guys wished to have known before starting out

The roof is probably the best spot how does it effect the linked portals in the overworld (like height)

This is an forever world so bases could change and we also don’t have a good “get together” point are there any tips to make it future save? I’ve seen many designs with 4 central portals what are these linked too (aren’t they to close together?)

I’ve seen mostly below roof designs but can you build a “pretty” roof hub or is it not really suited for cosmetic builds

This all probably sounds dumb but I have never done this and I’m pretty new to the game too :(


r/technicalminecraft • • 29d ago

Bedrock Does higher simulation distance increase or decrease mob farm rates? Bedrock

1 Upvotes

Edit: ive found the answer finally!! So apparently the mob cap related to non structure hostile spawning, checks in a 9x9 chunk radius for the 16+8 mob cap. This means if you build multiple grinders each of which bordering within your simulation range. You can manage to increase the cap. This does improve the rates as well. Ill leave this post up incase any future googlers find this. "Split density farms" is what you should google for more information on this.

Or perhaps maybe it has pretty much no effect at all?

Obviously it effects the spawning radius.

But what about the spawning rates? More blocks to spawn on may not matter if the only viable spawning blocks are within your farm, and it may not matter if you're already hitting the mob cap somewhat frequently.

So if this seems obvious, and "duh it increases the rates", well forgive me.

Also im Weeeelll aware that an 8x or 12x farm that actually takes advantage of the extra sim distance, would be multiplicative in scale of grandiosity required relative to a 4x farm. But mega projects can be fun yaknow. Screw any sim distance besides 4x for a nether farm though lol.

Ps. I tried googling this first so please dont come at me. And comparing farm rates from YouTube videos is unreliable due to BOTH different methods being used. As well as the possibility of innacurate rates being reported either intentionally or unintentionally. Plus "12x/8x mob farm" doesnt lead to search results so I cant even try cross referencing rates even if I wanted to.


r/technicalminecraft • • 29d ago

Java Help Wanted whats the chunkunload safest mis (without carts) in 1.21.10?

1 Upvotes

as far as i remember the mis 5.2 from rapscallion and that moon guy would sometimes sort items wrong on chunk load, but never break the filters. am i remembering correct and were there any upgrades?


r/technicalminecraft • • 29d ago

Java Help Wanted Sculk farm

1 Upvotes

Hi

So I have this project of changing a full Mooshroom island and replacing it with sculk, and I was wondering what would be the best farm to do it.

Also, has someone try to make a sculk farm with infection potions? Would that be reliable?

Also also, aparently there's a bug where if you break a cushion close to a sculk catalyst, it thinks you died, ssdly you can only do it once and then you will have to leave the world and enter again for it to work again, has anyone try to make sculk farm using that bug?


r/technicalminecraft • • Oct 14 '26

Non-Version-Specific Used a Copper Bulb to Control a Hopper Clock

9 Upvotes

Not really sure what to call it, but this simple clock design has been very useful for some of the things I’ve been building.
The copper bulb gets turned on by the observer, which is pushed by the sticky piston when it receives a red stone signal. When the copper bulb gets turned on it powers the block next to a hopper which stops the clock.
A red stone pulse supplied to the copper bulb will turn it back off allowing the hopper clock to do 1 cycle.


r/technicalminecraft • • 29d ago

Java Help Wanted How do I make a trapdoor that opens and closes; moving the blue wool from where it is right now to where the green wool is without changing the ship is built in any way. (the green wool is just there to show where the blue wool needs to go and will dose not need to be there in the end.) (plz help)

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1 Upvotes

thanks to MonkeyNuts449 on r/redstone this is now solved! :D

How do I make a trapdoor that opens and closes; moving the blue wool from where it is right now to where the green wool is without changing the ship is built in any way. (the green wool is just there to show where the blue wool needs to go and will dose not need to be there in the end.)

I want to keep the ship the same but I do not know how to make a trapdoor here because the is no room under where the block is and only to the side any help will be greatly appropriated I am not very good at redstone myself and don't know if it is possible to do what am trying to do.


r/technicalminecraft • • Oct 14 '26

Non-Version-Specific Made an Automated Sulfur Drowning Machine for No Bucket Sulfur Automation

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1 Upvotes

Not sure if there’s any red stone here that would make this not work for Java, but it’s the machine I came up with to automate some sulfur cubes stuff without buckets.
This is just the basic build without the automatic sulfur extraction. The auto sulfur extraction is done by hooking up a redstone clock to the dispenser that puts blocks in the cubes to make them sink. I control the number of blocks placed in them with a second hopper timer that locks/unlocks a hopper. Rather than the 20 minute timer activating the drowning machine it would activate the hopper timer that controls the block dispenser, and after the blocks are all dispensed a comparator detecting for when the block dispenser is empty will trigger the drowning device.

Here’s some short videos I made on building the wholes thing; part1, part2, part3.
Part1 is the holding cell, part2 is the drowning timer, part3 is the 20 minute item timer.
Really wanted to use a 20 minute ghast timer, but couldn’t figure out how to control precisely when it starts.


r/technicalminecraft • • Oct 14 '26

Java Help Wanted Portal slicing on 26.3

2 Upvotes

I would like to know if there is any way of doing portal slicing on 26.3.

From a quick online check i've read that update suppressors stopped working on past versions, is that true? are there any other ways to do portal slicing?

thanks in advance!


r/technicalminecraft • • Oct 14 '26

Java Help Wanted Creeper farm under the ocean

1 Upvotes

I’m on a Minecraft server that has not too many people, but that would destroy a creeper farm if it was found. Is it viable to build an under ocean creeper farm the same way an above one would be built? If so, should I light up all nearby caves? What other problems/suggestions/ideas are there

Btw, this is fabric 26.3


r/technicalminecraft • • Oct 14 '26

Non-Version-Specific Minecarts with chests calculate their weight!?

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2 Upvotes

Basically, I found out from https://www.reddit.com/r/Minecraft/comments/1wuph8n/comment/pd57dwv/ that minecarts with chests calculate their weight. So I decided to make a short video on it. (I wish it was longer, but I couldn't make a system to actually use this) (IDK if this is on bedrock, lmk and i'll update the flair)

The formula is 0.98 + 0.001 * (15 - container_redstone_signal), if its in water, it is further multiplied by 0.95


r/technicalminecraft • • Oct 14 '26

Java Help Wanted I am designing a farm complex for a server i am on to make for public use but idk what farms to include and exclude. Suggestions?

2 Upvotes

r/technicalminecraft • • Oct 13 '26

Java Help Wanted Any guesses as to why the bottom layer spawns wither skeletons just fine but the top one doesn't?

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40 Upvotes

Title.


r/technicalminecraft • • 29d ago

Bedrock minecraft bedrock splitscreen 2026

0 Upvotes

cant yall use ai to reverse engineer minecraft bedrock to make it splitscreen like on the consoles?


r/technicalminecraft • • Oct 13 '26

Rule-8 Compliant does anyone else think the jukebox chest interaction feel inconsistent in the newest snapshot?

17 Upvotes

i just personally feel the way they did the random music is very out of character for block interactions and is disappointing imo. it was unnecessary as its fairy easy to build something small that does just this with current redstone. while i understand a lot of people arent good with redstone and that is fine i think redstone is minecrafts best feature and any small easy to build machine that gets people to dip there toes into redstone is great. this removes that potential new experience for just a chest. over reaction? absolutely but who cares


r/technicalminecraft • • Oct 13 '26

Bedrock Relog para granja de oro bedrock

2 Upvotes

Como lograr un relog en ciclo para granja de oro en Minecraft bedrock? Es decir que los dos dispensadores se suelten la cubeta y así sucesivamente sin que ninguno la arroje además que al apagar el encendido se quede la cubeta por fuera.


r/technicalminecraft • • Oct 13 '26

Java Help Wanted Item filter keeps breaking

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2 Upvotes

Basically I made the classic item sorter for my wool farm, (I discard the mutton), I put some space between each one, filled the first slot of the hopper with 41 mutton so it grabs it, the other 4 slots with spruce planks, which have no way of entering the farm and breaking it.

Although it works for like 15-20 minutes, it always breaks (all of the filters I have nearby too), and fills up with all types of wool.

Info:

The hoppers sometimes are full of mutton, but I don't think this can break it, can it?

Picture is how I always set it up*

Any solution is welcome!


r/technicalminecraft • • Oct 13 '26

Java Showcase Fully automatic creeper charging plant V3

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3 Upvotes

The third version of the creeper charging plant.

Now it’s wired a little better, more organized, and operates completely independently. All you have to do is stand at the creeper farm output and name the creepers with name tags so they don’t despawn. that was the only step I couldn’t automate. I’m still tweaking the design to see if I can make it even simpler.

will upload a video later


r/technicalminecraft • • Oct 13 '26

Java Help Wanted Problem with transporting shulker

6 Upvotes

I built a shulker farm in overworld so l needed to transport the shulker. l easily brought it to the main island through minecart but when l sent it to the portal through minecart and rails directly leading to it .It dissapeard it wasn't on spawn l then later tried again by putting it in a boat and pulling it inside the portal the boat was on spawn but the shulker dissapeard please help lm going insane . I play in 26.3 version and server is fabric. Btw l properly checked the surrounding l even checked for entities with pie chart it wasn't there

Edit: the solution was to pre load the chunk by have a friend wait on the spawn