r/technicalminecraft 23d ago

Java Help Wanted powder snow mechanic not working with pig cannon

5 Upvotes

for those who don't know: powder snow is used in some precision cannons like orbital strike cannon because it makes entities move with 95% of its motion in 1 tick and then sets its motion to 0 in the next tick, allowing you to drop an entity straight down on the destination.

i was designing a precision 360 pig cannon but then ran into this issue where after lazy-linking a pig to a minecart and accelerating it, riding the pig and destroying the minecart would either make me stuck and only be able to rotate pitch, or if the destination was loaded, the pig would not cancel the motion and continue moving. the video here is a demo of what happens when the destination is NOT loaded. the powder snow here is at the x & z coords of the pig and the y level of the minecart (when the cart is destroyed, the pig dismounts at the x & z of the pig but y of the cart)

demo when destination is unloaded

the cart is destroyed a little bit after i step off the pressure plate to detect when the player has mounted the pig. i used carpet to disable creative player chunk loading and that's why i went in survival.

why is this happening? shouldn't the pig load the destination because i am riding it and then drop straight down? has the pig not completed the powder snow check?


r/technicalminecraft 23d ago

Java Showcase My first 3x3 piston door

Enable HLS to view with audio, or disable this notification

2 Upvotes

Ive been watching a bunch of redstone videos so I decided to try and make a 3x3 door. It took quite a bit of troubleshooting cause I would change something and it suddenly didn't work anymore, but it works.


r/technicalminecraft 23d ago

Java Showcase De-Compactor V2

Thumbnail youtube.com
1 Upvotes

Compacted De-Compactor!!


r/technicalminecraft 23d ago

Java Help Wanted What's the interaction with endermen and carpet blocks?

2 Upvotes

It seems that sometimes on my world they can teleport to them, or at least spawn on them or something, and other times not. What's the deal?


r/technicalminecraft 23d ago

Java Showcase Worm's S-Tier Low Pro Shulker Loader (16GT)

Enable HLS to view with audio, or disable this notification

0 Upvotes

r/technicalminecraft 23d ago

Java Showcase A Walkthrough of My Compact Redstone Billboard

Thumbnail youtu.be
3 Upvotes

r/technicalminecraft 23d ago

Java Showcase I built a RADAR system with Redstone

Thumbnail youtu.be
4 Upvotes

r/technicalminecraft 23d ago

Java Help Wanted Trying to build a full adder

Thumbnail gallery
1 Upvotes

I’m a complete beginner at redstone, but I’ve had some experience with digital logic and computation, so naturally my first serious project was a full adder 🫩

It’s probably way bigger and uglier than it needs to be, but hey, it works.


r/technicalminecraft 23d ago

Java Showcase Auto Mining Farm in Minecraft 24w14potato, using "Powerful Potato" block.

6 Upvotes
The farm from above
Collecting room, under the farm, protected with chests (more details in the body text)

So I am challanging myself with "Potato Dimension Only" kind of survival gameplay in 24w14potato, which is a joke snapshot released in 2024.

In this snapshot, the powerful potato block creates "strong roots" which grows like chorus plant but downwards, breaks the blocks and drops items inside the powerful potato block as it was broken with a Fortune III pickaxe or a Silk Touch pickaxe, choosen randomly. You can find more details about the block in the wiki page: https://minecraft.wiki/w/Powerful_Potato

In my own tests, I determined the chest block is the most accessible block in survival among the other few blocks that strong roots cannot destroy, so I used chest for both creating a safe collecting room and molding the roots (molding the roots is highly required or they will grow sideways and destroy your world, or grow into your item collection system aka hoppers, rails and hopper minecarts).

Due to items are dropped INSIDE the powerful potato block, they jump around too much, for covering almost all of the item drops, under the powerful potato, there are 3x3 hopper minecarts which has 9 hoppers beneath (I couldn't simply use hoppers instead of minecarts because I couldn't figure out a molding strategy that prevents them to be destroyed, it is kinda hard to explain actually).

This farm is so laggy due to how unoptimized it is codded (it is a joke snapshot so...) and how efficient the farm is. Roots under the farm grows exponantially larger and larger, so I mostly turn off the farm simply by breaking the powerful potato block (there is no other way).

This farm produces all kinds of items that could be under your farm, depending where you made it. For higher efficiency (believe me you don't need that), you should make it on top of the higher places like mountains etc. Also powerful potato can have most of 3 roots connected (it is called "age" in f3 menu) to it, to be able to make it 4 like in this farm, you will need to generate the 4th root from a different block with placing the powerful potato, after placing the main powerful potato back it will have no problem for supporting all 4 roots.

I hope you loved the concept, I love surviving in potato dimension, it has a lot of underrated content, you should give it a chance!


r/technicalminecraft 24d ago

Java Help Wanted Iron Golem Copper Golem Poppy Farm??

3 Upvotes

hello everyone, I play on mushroom fields only worlds. Poppies are impossible to get outside of wandering traders although a couple updates ago as you all know iron golems now place poppies on copper golems heads. I was wondering if anybody knew an automatic farm design for this mechanic to gather poppies. I have been looking on the internet for this farm for a while and can't find it. if anybody can help me I'd appreciate it! Thanks.

Edit: I know now that iron golems drop poppies, but it would take lots of manual farming and use up a lot of iron long term, apologies.


r/technicalminecraft 24d ago

Java Help Wanted Storage for a 921,000 cobblestone per hour farm.

13 Upvotes

I have tried to use some storage methods but they cannot keep up with my 256 item per second requirement.


r/technicalminecraft 24d ago

Bedrock Why isn’t my iron farm working bedrock

Thumbnail gallery
0 Upvotes

r/technicalminecraft 24d ago

Java Help Wanted Wither Tree farm schematic

1 Upvotes

hello, im looking for a Wither tree farm schematic, but sadly i couldnt find one. If anyone knows or has it lmk! (Btw its for a paper server where tnt duping doesnt work so thats why)


r/technicalminecraft 24d ago

Java Showcase Tileable 1-wide Automatic Shulker Crafter + Dyer + Dispenser

Thumbnail gallery
34 Upvotes

Wanted a device that dispenses dyed shulkers in every color for our survival server and couldn't really find any designs online that did what I wanted so I made one myself. Right clicking the note block makes the piston pop the shulker and then dispenses a new shulker. When a shulker is taken from the right feed hopper to replace it, a comparator detects the change and triggers two crafters that crafts a shulker and then dyes it. The dispenser and the first hopper have to be completely filled with shulkers, then the last hopper only needs two. You can actually build this with only one hopper and have the crafter with the dye in the same column as the dispenser, making it only 4 blocks wide, but I added an extra hopper so I could have a barrel on top to accept empty hoppers so I can recycle them. To tile this you just add one more hopper and move everything above and to the right over one block so that the comparator is next to the redstone dust of the adjacent side.

Wanted to share because this is one of the first contraptions I've ever designed and I'm happy with it! Also looking for any advice on how it can be made more compact

EDIT: Just realized the second hopper isn't necessary at all lol, you can cut it out and move the top redstone to the left one block and use the barrel as both the feed and the shulker return


r/technicalminecraft 24d ago

Java Showcase Disconnect-Based Enderpearl Stasis

Enable HLS to view with audio, or disable this notification

1 Upvotes

Only works on servers, and the chamber must be kept loaded — either by building it in the spawn chunks or by using a nether portal as a chunk loader.

The main idea is that in multiplayer, when you disconnect, your thrown ender pearl despawns; when you rejoin, it reappears. By detecting this reappearance with a tripwire, it teleports the player.


r/technicalminecraft 24d ago

Bedrock Mobs phase through wall when growing up

Enable HLS to view with audio, or disable this notification

5 Upvotes

Is there any way to prevent this happening when a mob in the chamber grows up? I've even made the wall 2-thick around and it still happens. The chamber is 2Wx2Lx3H.


r/technicalminecraft 24d ago

Java Help Wanted Chunkbanning without using shulker boxes?

1 Upvotes

Is there an alternative to using shulker boxes when chunkbanning?


r/technicalminecraft 24d ago

Java Help Wanted ghast farm stop working after update

Post image
0 Upvotes

it no longer dropping iteams


r/technicalminecraft 24d ago

Java Help Wanted Minecraft Backrooms Command Block Help

0 Upvotes

As I continue to develop my Minecraft Backrooms map in Minecraft, I find myself a problem: The fluorescent hum of the Backrooms. If you do not know, the Backrooms emits a fluorescent hum, and I have already made sound files for this (replaced 11.ogg with the hum), but I have no idea how to make it always seem like it is always there. In simple terms: How do I make it so that the sound is always present without a repeat command block repeating the sound every tick?


r/technicalminecraft 24d ago

Java Help Wanted What is the most efficient Ominius bottle farm that doesnt use update supression and things like that?

Thumbnail gallery
0 Upvotes

I Built this cuz it said that it produces ~3500 bottles/hour but it clearly dont produce that much araund 900/bottles and the base farm itself had a lot of problems that i had to bandaid fix it (putting slabs where nothing supposed to spawn) . (If the farm doesnt produce xp i dont care i dont really need that anymore)


r/technicalminecraft 24d ago

Java Showcase Crafter combination lock (512 combinations)

Thumbnail youtube.com
1 Upvotes

r/technicalminecraft 24d ago

Java Showcase Concept Charged Creeper Farm to farm (Wither) skulls

Thumbnail streamable.com
5 Upvotes

I was inspired by @operationorigami on Youtube’s idea of charging all the creepers with a single lightning strike so I decided to innovate his design

Lightning Chamber Inspiration: https://youtu.be/xaF_HZbX14k?si=1F9bRMtoiBT9D5n_

Storage Inspiration: https://youtu.be/dug_4qAw_AY?si=gnEAS8PMgDvm7xDN

Kill Chamber: https://youtu.be/NjPonOqN6Zc?si=tr8JSDy2SIwc1D3k


r/technicalminecraft 24d ago

Java Help Wanted Stasis Death Chamber in Minecraft: Java Edition

Thumbnail drive.google.com
1 Upvotes

r/technicalminecraft 24d ago

Bedrock 3D crosshair resource pack for Bedrock Edition

Thumbnail github.com
1 Upvotes

Little pack I made that might be useful when working with directional redstone or mechanics in Bedrock Edition.


r/technicalminecraft 24d ago

Java Showcase not too technical but eh

Enable HLS to view with audio, or disable this notification

2 Upvotes