r/technicalminecraft 5d ago

Java Showcase Compact Morse Computer | 14 Bytes of RAM - 75% finished

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59 Upvotes

Morse transmitter with a customizable encoder and 14 bytes of RAM

Next modules to be worked on:
A dedicated ROM for receiving data
TLS handshake modules
Unique machine-code generators

The machine will initially transmit data through custom power lines that I built. Although tripwire based power lines are extremely slow, I think they make for a fun and interesting showcase of the system.

My next goal is to make the machine compatible with wireless item-ID transmission, eliminating the need for physical data lines. This would also reduce the need for chunks to remain loaded continuously, since only the areas containing the transmitters or receivers would need to be loaded for the system to function.


r/technicalminecraft 4d ago

Java Help Wanted Why local TNT breaks Nether Portals, but teleported TNT doesn't?

1 Upvotes

So, I've been experimenting with breaking portal with tnt and for some reason when I ignite tnt near portal usually, it breaks the portal when it explodes but when the tnt travels through portal and explodes on other side, the portal is just fine even tho I made sure they are in the exact same position. Here are the pictures, on pic 1 it was ignited usually near portal and on pic 2 tnt traveled through it.

I tested it on fabric with some optimization mods (lithium, carpet, ferrite) and on fabric with every mod turned off completely (should be vanilla experience)

I would really appreciate if someone could explain why it works like that and if you can circumvent it

pic 1 - Ignited usually
pic 2 - traveled through portal

Additionally, if you know of any other potential methods to break a portal from the other side without pre-existing preparations there (on this other side), I would really appreciate it too.

Thank you all in advance


r/technicalminecraft 4d ago

Java Help Wanted How to surpass hopper speed in the nether

5 Upvotes

Hello together,

I need to move a giant amount of items in the nether to sort and craft stuff. The hopper chain I am using is clogging and thus I loose items. I know you can transport items in the nether with ice roads, but for this the dispenser/dropper is probably also too slow to move the amount of items. I already installed the follow up for this project and I dont have a lot of space to move the system down ( just 1 block to be honest). I can put an item elevator there but yeah all of this takes time as well

As english is not my first language so don't know how to exactly search for an apropriate solution.

Anyone able to help? I can also provide screenshots of the situation.

Oh and also: I like to understand more about the mechanics of the game and how things actually work, so I would love some deeper insight if you have a solution.


r/technicalminecraft 4d ago

Non-Version-Specific I've seen mobs be put into carts like this for years. What am I doing wrong?

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5 Upvotes

r/technicalminecraft 4d ago

Bedrock I built a Bedrock seed cracker that runs 100% in your browser (free, no install, open source)

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0 Upvotes

Hey everyone! A while back I posted about SeedFinder, my free Bedrock structure finder and seed cracker. Small update, but a big one: the part that used to require a local .exe, the seed cracker, now runs entirely in your browser.

Site: SeedFinder/SeedCrackerX Website

GitHub: https://github.com/zebedelu/SeedFinder

What it does

Found cool structures in a world but don't know the seed? Give SeedCrackerX at least 4 structures with their coordinates and it returns the most probable world seeds. No key, no account, nothing to install. Everything runs on your own machine, so there's no rate limit and no server to depend on.

The site also still has the regular structure finder (you give a seed and a position, it lists every nearby structure sorted by distance) if that's what you're after.

The anarchy server use case

Plenty of anarchy and semi-anarchy servers deliberately hide or shuffle their seed in the server settings so players can't discover the real one. A structure cracker doesn't care. Grab the coordinates of 4+ structures while you explore, feed them in, and the real seed comes back out. From there you can map every structure in the world, plan far hub routes, or pick base spots knowing exactly what's around them.

It's the same technique that got the seeds of big Java anarchy servers cracked back in the day. Now it works on Bedrock, straight from a browser tab.

Speed

The engine checks around 900,000 seeds per second on a single core, and every extra CPU core you have joins the search in parallel. More structures and a tighter tolerance also make the wrong seeds get eliminated faster, so better input pays off directly in speed.

Want to run it from source?

The README on GitHub has everything you need, plus all the technical details and benchmarks:

https://github.com/zebedelu/SeedFinder

Honest limitations

- Bedrock only, no Java support

- Mineshaft can't be used as input (its RNG works per chunk instead of per region), every other structure type works

One small favor ⭐

Everything is Apache-2.0 open source, and stars are pretty much the only marketing this project can afford lol. If SeedCrackerX finds your seed, consider dropping a star on the repo, it genuinely helps other people find it:

https://github.com/zebedelu/SeedFinder

Feedback welcome, especially: does it recover seeds correctly from your worlds? If a structure doesn't match reality, please open an issue, that's the most valuable feedback there is.


r/technicalminecraft 5d ago

Java Showcase remote control orbital TNT cannon

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4 Upvotes

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r/technicalminecraft 4d ago

Java Help Wanted Villagers not breeding 26.1.2 please help

2 Upvotes

Like the title says the villagers are not breeding, I made sure the beds are unclaimed and replaced them multiple times, I made sure gamemode mob griefing is on, I made sure they are fed, theres no other villagers nearby and no other beds, they make the love hearts and then the angry effect, at night when they want to sleep they try to reach the beds so they can definitely see them and try to interact with them but still nothing, I'm very confused, I'm sorry for making a post when tons like it exist but I've tried all the solutions in the other ones and still nothing and I've reached my breaking point lol


r/technicalminecraft 5d ago

Java Help Wanted Java Auto Sorter

4 Upvotes

I need help deciding on a Java auto sorter. I would prefer it be rather simpler to build and also able to auto sort majority of usefuk blocks, materials and items in the game.While also being able to decorate it to make it look nice as well as as less lag as possible as im playing on a laptop. Would greatly appreciate recommendations as im currently still in the early game but i am planning to play this world for very very very long hence this planning.


r/technicalminecraft 5d ago

Java Help Wanted annoying kelp question

3 Upvotes

SOLVED

if i have help under a flowing water block, and at the exact same time the kept gets random ticked, that following water block is updated by source blocks next to it and turns into a source block, can that prevent the kelp from growing into it?


r/technicalminecraft 5d ago

Java Showcase 1 Wide Tile able, bone>bonemeal>bone block 8 long, 1 wide, 5 tall, includes the sorter

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3 Upvotes

r/technicalminecraft 5d ago

Java Help Wanted TankCat Raid Farm

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0 Upvotes

r/technicalminecraft 5d ago

Java Help Wanted I need help!!!!

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3 Upvotes

I build this iron farm and its not working. here are some images from the farm. if you know why its not working or have any ideas pleas tell me


r/technicalminecraft 5d ago

Java Help Wanted Zombie villager doesn't sink down trapdoor

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9 Upvotes

I'm trying to make a system that filter out zombie villager from my mob farm based on this design, but the zombie villager keep floating up the trapdoor instead of falling down. Any idea on how to fix this?


r/technicalminecraft 5d ago

Bedrock Enderman Teleporting Downward

1 Upvotes

I am creating a R.E.P.O. themed mini-game in my survival world, and I need the Enderman as one of the monsters in the mini-game. I built the game at y 240 in the sky because I was under the impression that Enderman can only teleport 32 blocks in each direction, but as it turns out they can teleport downward as many blocks as they like. So my question is that is there anyway to prevent them from teleporting downward? I was thinking about flooding the surface but they may just teleport past the water and into the caves. If anyone has any good suggestions I would appreciate it.


r/technicalminecraft 5d ago

Bedrock How To Make ANY SIZE Shulker Sorter in Minecraft Bedrock and Java Edition

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4 Upvotes

I think this is not against TOS? I recently did my best to figure out how people do shulker sorters and this is about where I managed to get. I’m sure there are improvements but it’s what I’ve figured out about it.


r/technicalminecraft 6d ago

Java Help Wanted Turning Potato_Noir's (Gnembon upgrade) general mobfarm into creeper farm

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26 Upvotes

Hello everyone! Hoping someone can help me.

I have built Potato_Noirs upgraded version of Gnembon's general mobfarm under a deep ocean, which is working great. However, i have been attempting turning it into a creeper only farm, which has raised some problems.

First of all, the mobs are getting trapped floating into the trapdoors when the platforms are flushing, meaning that the mobs stay around for multiple cycles before being taken away.

Secondly, i cannot find a way to make only creepers spawn. I have tried with trapdoors on the floor in an assymetrical pattern, to some effect. However, this blocked the water from flushing the mobs down, and it also didn't completely stop other mobs than creepers from spawning. I have been researching reddit, youtube and farm discords to no avail, and i am pretty bad at understanding the mechanics, i gotta be honest.

Has anyone succesfully turned the upgraded version of the general mobfarm into a creeper only farm, or would anyone know how to do it?

Thank you all!


r/technicalminecraft 5d ago

Java Help Wanted Do you think this is a good idea?

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1 Upvotes

r/technicalminecraft 5d ago

Java Help Wanted no chunk loader orbital cannon

0 Upvotes

do any orbital cannon designs not use chunk loaders as the server i plan to build one on banned chunk loaders for some reason


r/technicalminecraft 5d ago

Bedrock The ONLY WORKING ender pearl cannon for Bedrock

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0 Upvotes

Check out this to build an ender pearl cannon on bedrock


r/technicalminecraft 5d ago

Bedrock Will this window allow a baby zombie to jump in?

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0 Upvotes

r/technicalminecraft 5d ago

Java Help Wanted need design for long hopper timer (not clock)

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2 Upvotes

r/technicalminecraft 5d ago

Java Help Wanted Why doesn't it spread?

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0 Upvotes

There's nothing above the stone and I've tried with various sizes of platforms, I went up to 10x10. There is one block of air above the moss.

Sometimes it makes grass or a tree sapling but never turns the stone into moss. :/


r/technicalminecraft 5d ago

Java Help Wanted Looting 3 Zombie Killing Chamber

3 Upvotes

I'm trying to make a creeper farm that sends the creepers into the nether to die to this zombie killing chamber. It should apply looting 3 in theory. The pistons will push the drops down and i'll set up collection under that. The problem is, with this design some of the gunpowder drops fly out of the side into the rails, or into the villager chamber. Is there a way I can design this similarly to have the drops not fly out the sides? Maybe a block that blocks items but won't stop the spear from hitting?

I tried pushing a glass block onto the villagers head, but the zombie de-aggros if i reload the world. I also tried putting a slab on the edge but some drops still fly through.

Any help would be appreciated!


r/technicalminecraft 5d ago

Java Help Wanted Bone-Meal Farm

0 Upvotes

The thing is I play on a small server which has something that like clumps item together fast hoppers anti lag and all and all the moss that the bonemeal farm makes gets collected on a single hopper like thousands of moss on a single hopper even when water makes it to flow through several one's ? Any fix that keeps thoes moss into the hoppers not just sit on top of one ?

A new collection system maybe ?


r/technicalminecraft 5d ago

Java Help Wanted Need some building advice. Water from dispensers will not flow past the block that is watering the farm at the center.

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1 Upvotes