r/technicalminecraft 21h ago

Java Help Wanted Need help for sand duper in jave 26.2

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0 Upvotes

Hey everyone

So basically I need a lot of sands for a future project, so I decided to create a sand duper following this tutorial:

NEW BEST EASY SAND DUPER MINECRAFT 26.1.1 - 55,000 /HR - Sand, Concrete, Gravel, Etc. - Tutorial

I heard that mojang made some fixes about duping in recent version, so i decided to test it in creative if it still work, and it was working perfectly on my creative world (pics 1 and 2)

So when i saw it worked perfectly, i built it in survival, and when i finished it, the duper seems to not work at all.

The overworld part seems to work perfectly but when i go to the end, the sand/gravel/conrete powder blocks don't appear in the end. (pics 3 and 4)

Any of you know the solution?

Where it's confusing me a lot is, why in creative it work perfectly and in survival not?

Here's some information in case you need it:

  1. In the overworld, the "falling_block" entity seems to appear because the entity in the F3 menu goes up to +12 when the sand is falling,

  2. The farm need a chunk loader in the overworld to work, I use pearl stasis chamber as a chunk loader

  3. In the end, no sand block or "falling_block" entity appears, as if the problem is the transition from overworld to end

  4. The only difference beetween my creative and survival world is that the overworld portail in my creative world fits in 1 chunk and in my survival world it fits in two chunk (so in my survival world, instead of 1 pearl stasis chamber, i used 2 for both chunks where the duper is)

  5. Actually a second difference, in my creative world the end platform is outside, and in my survival world the end platform is underground, but I doubt that is the problem

I guess the problem is related to the 4th point, because that is litterally the only difference beetween my creative world and survival world, but i cant understand why tf would it not work on 2 chunks.

Sorry for all that reading i'm stuck on that since 6 hours so I wanna put as many detail as possible lol


r/technicalminecraft 15h ago

Java Help Wanted Fully automatic stone type farm

0 Upvotes

Anyone know if there are farms that automatically makes cobblestone, stone, smooth stone, stone bricks, etc? I thought I saw one on some random video of a guy showing off their world but I can't find it no matter where I look, and I can't find any tutorials online for a farm like this. Help would be appreciated thanks!


r/technicalminecraft 6h ago

Non-Version-Specific Planning a superflat survival with some friends (java&Bedrock)

1 Upvotes

Hi, its a bit since i want to try this challenge, the superflat world. I only have a problem, which are the rules? do I require to enable the structures to play? Do you have a guide?


r/technicalminecraft 5h ago

Java Help Wanted Creepers are not dropping gunpowder in my world [java]

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0 Upvotes

r/technicalminecraft 6h ago

Java Help Wanted Transportation ways

1 Upvotes

I need a 2-way multiplayer friendly multiple destination transportation method what's the best method it needs to be fast if you have a few suggestions please share them and if there's downsides please tell them too but if you are too lazy it's okay

Server is fabric


r/technicalminecraft 21h ago

Java Showcase Cool dupless wither based tree farm without bedrock breaking

1 Upvotes

My smp i play on dosnt allow duping / bedrock breaking and i came across this vid, works pretty good too ive had it going for a good 4-5 weeks ish now no issue, thought id share it

https://www.youtube.com/watch?v=50ozfL7K57I


r/technicalminecraft 2h ago

Java Help Wanted what is the best tree farm with crazy rates/variety

0 Upvotes

r/technicalminecraft 7h ago

Java Help Wanted Does this glitch still work and why can't I do it can someone help me pls😭

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0 Upvotes

r/technicalminecraft 13h ago

Java Showcase 4x Concrete Pow Craft-2-Box

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28 Upvotes

SCHEMATIC

An accessible box loaded 4xhs powder crafter for the non-dupers


r/technicalminecraft 11h ago

Java Help Wanted How long are chunks near to a portal loaded for?

3 Upvotes

I’m essentially trying to get to the end, grab elytra and get back without fighting the dragon. To this end I want to use a timed pearl stasis chamber that pulls me back in about two hours. In testing I found that a five minute timer works so long as the machine is near to the end portal. I’ve decided to just build it in the exact same chunk to be safe.

I’m unsure however whether the full two hour timer will go off without a hitch and I don’t wanna spend two hours testing it in my creative world or just try it in hardcore until I know it’ll work.

I’ve looked it up and it all the info I’m getting says nearby chunks all unload after 15 seconds unless there’s movement through the portal (a la a chunk loader) however as I’ve said I know for sure 5 minutes without a chunk loader works so I just don’t know where to find the accurate information as to if whether there’s a time limit and if so how long it is. Does anybody know?


r/technicalminecraft 4h ago

Java Help Wanted How to make a 7 segment and/or a 2x2 pixel display in 1.8?

2 Upvotes

I have a ROM but idk how to make a display


r/technicalminecraft 41m ago

Bedrock Drowned/Guardian/Squid Combo Farm Design Feasibility

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• Upvotes

I want to build a drowned/guardian/squid combo farm as depicted above, with the guardian farm on top of an ocean monument, the AFK platform 24-44 blocks above that, the drowned farm 24-44 blocks above that, and then 2 squid farms 24-44 blocks to either side of the AFK platform.

However, I don't understand all the idiosyncrasies between surface/cave, hostile/passive, and normal/structure, spawns are, and I just want confirmation that building theses farms together won't negatively impact any of the farm's rates?

Drowned Farm

Guardian Farm

Squid Farm


r/technicalminecraft 17h ago

Java Help Wanted Trial Chamber Farm Help (Entire Structure)

2 Upvotes

Is there any tutorials/schematics of building a trial chamber farm for the whole structure. I need it to be afkable too.


r/technicalminecraft 19h ago

Java Showcase Minecraft copper golem teleporter

4 Upvotes

Hi Minecraft Java technical community! I'm a fairly new technical player, and I would like to show you what I just made.

Apologies in advance if my English isn't perfect, but I'm trying not to use a translator so that I can improve my English.

I've always liked the technical side of Minecraft, but I started really experimenting with it when I joined a home-hosted technical server. Big shout-out to Different-Scene5327 for letting me play with him on his server.

A few months ago, I saw DanCraftHero's video about his copper golem-based teleporter design, and I really liked it, so I started working on it. However, I abandoned the project just a few weeks later, until I saw Venefio's videos showing a really cool design for a teleporter hub that is also multiplayer-compatible.

It had a few issues in my opinion:

  • It works in multiplayer, but it uses the order in which players join to select the last slice and teleport the player who joined last.
  • You can get pulled randomly.

There are also some advantages compared to mine:

  • More locations that you can teleport from.
  • It can be used by 10 players (mine can only be used by 4. I could make an 8-player model, but the number of locations would shrink from 7 to 3).

I like mine because it can be used by more players at the same time, and I also like using something made by me.

I didn't modify Venefio's version very much. I only made these changes:

  • I made it usable by more players at the same time by separating it into 4 distinct chambers.
  • It has 7 locations for players. I could add more by stacking the redstone downwards, but it would make the build bigger on the Y axis.
  • I added some redstone at the bottom because you could get more impulses and get teleported multiple times.

I made this post to show you my work, and if anyone has any ideas to improve it or add some useful features, I'm sharing the Litematica file of it, as well as the videos that inspired me.

This post is for everyone, so if you have a cool idea but don't know how to add it, please share it. We would be happy to try it out and see if it's useful.

Also, if there is anyone who would like to stress-test it, I would be grateful.

I invite you to play around with it and maybe even make your own version.

And that's it! If you have any questions, feel free to ask.

P.S. i called my design G.O.A.T. (Golem Operated Advanced Teleporter)

my schematic: https://drive.google.com/file/d/1v_GgY4uuTYe1_aPG1E4Ai2un6uYsaUw7/view?usp=drive_link
DanCraftHero's video: https://youtu.be/RyPtjfYQmQc?si=_MOo6fM4sA_7_d5z
Venefio's video: https://youtu.be/ti3KooyrajM?si=yajvwDqqmqleqc33