That's why I wanted to design my own simple one. If I can avoid it, I don't want to use machines I don't fully understand myself (storage tech excluded).

@@Borkon Does ilmango's design have any advantages over yours or is it just more complicated?

@@Legoman1352 Makes a higher tunnel, so it exposes more ores per blast and it can be fired from both sides. My designs biggest advantage is that it's much simpler, easier to understand and repair and the TNTs are spaced out enough that a creeper won't set off a chain reaction.

@@Borkon Thank you for such a detailed reply!

@@Legoman1352 After building both designs this seems more server-friendly, more reliable (ilmango's exploded on me 4 times due to server lag, this not even once), and much more easy to build and fix.

Thanks.

He really does

So I've heard about the 1.17 snapshots issue, I've only been able to reproduce it when the TNT duper was in the spawn chunks and it only happened when upgrading versions from earlier versions to newer snapshot. This might be pretty bad news for quite some complex redstone contraptions (not just TNT dupers). Lots of complex contraptions don't react well to unexpected updates (which this seems to be).

@@Borkon either way, love your contraption!

The tnt in the modules doesn't blow up even if its submerged in the lava?

@@angdelr32 I was playing on a server with fire tick disabled. It may blow up under lava with default gamerules.

Cool, glad it was useful. Like I said in the video, the only reason why I developed that wire was because I couldn't find any description of flying machine instant wires anywhere (I'm sure they exist, but being a noob is hard to figure out what to search for).

@@Borkon oh Also if you are curious about the variable timing quarry: its a recent video that I published in my KZfaq Chanel.

I can't see any immediate problem with stacking it vertically, but I'd have to experiment to give a definite answer. Clearing lava and water might get much harder.

The instant wire can be made longer (at least one, probably two blocks) and you can move around the attachments around a bit. Someone asked the same question a couple of weeks ago and even posted a picture of their solution, but I just can't find the comment now.

@@Borkon Wow thank you so much for your reply -- and the clue! I was able to find the comment, it is very helpful! Here is the image of the solution by TheDomeGamerzZ snipboard.io/nUJBaN.jpg Summary of the solution in case the image disappears -- there are two simple modifications: 1. Instead of placing the redstone block to "prime" the system, build the engine and tunnel bore segment 1 block further apart (so there is a 2-block gap between them, instead of 1-block). Place a slime block where you would have placed the redstone block (directly behind the the sticky piston at the back of the ENGINE). Then, place redstone block(s) directly adjacent to the slime block. These should match up with the "pusher" sticky pistons of the tunnel bore segments (on either side), and serve to prime the machine, just as the redstone block did in the original design. 2. In addition to this, you can better protect the machine by replacing the shroomlight on tunnel bore segments directly adjacent to the engine with ancient debris. So, for example, the segments directly to the right and left of the engine, at the very front, should have FOUR ancient debris, no shroomlight, and then the observer block, and so on, as normal. It will be exactly the same size, you are simply replacing ONE shroomlight with an ancient debris. I hope this was clear! The other commenter is trying to do exactly what I am -- clear out a space beneath the ceiling of the nether to build a world-eater. (I just can't bother with these hoglins!) so I hope this helps anyone else trying to do the same thing. Thanks again, your vids earned a sub from me, hope to see more of this great content!

@@istril8124 thanks, i was doing the exact same thing and this helped a ton with solving the shroomlights not blowing up

I've been thinking about changing the shape of the barrel, but haven't had time to play around with the tunnel bore recently. When it comes to lights, the only sensible thing is to have a mob switch. This is why I'm doing mob switches and chunk loading in my let's play world right now.

Time to try! Should it work I'll shout you out to my lovely 6 (yes, even six) subscribers. LOL.

GTX 1080 Ti, so not RTX. Yeah, I'm thinking that it has something to do with that the ancient debris is next to the wall, so the tnt has no chance to explode in front of it and because of that it won't hit any floor blocks, but the TNT moves sideways too, so I don't understand why it wouldn't hit the floor on the sides, but it doesn't seem so.

@@Borkon the only thing that came into my mind is that ancient debris shield downwards explosion. But im not a technical Player so i dont really know

You can determine the tnts landing spot by the distance to the walls and floor in the first explosion. if you dig 2 blocks under the debris Before first explosion the tnt will always land on the Edge and blow up a deeper hole

@@veetisaarela7435 are you sure about that? Because if its like that you could replace the 3rd ancient debris with an endstone, i would reccomend you to test .

@@malick9549 idk if it changes a thing but if you want to make the flattest possible tunnel attach a flying machine behind it wich pull and push blocks to your desired level

Almost all of those comments are from people trying on Spigot/Paper or other servers that break TNT duping. I used to answer those, but if people can't even read the FAQ in the description there isn't much I can do.

@@Borkon Yeah I just finish testingg it in 1.19+ and works fine can confrim. great build man thanks!

@@rcmrocks2374shulkercraft has a great block by block tutorial

wouldn't work, the synchronization is based on the instantaneous retractions of the sticky pistons, which is one-directional.

Nothing I have tested, but it's probably doable, I'll add it to the list of things to try in case I make another guide for these. You will have problems clearing lava and water though.

Everybody who has reported it not working either did a mistake or tried on a non-vanilla server where the admins have disabled duping. I've built over a hundred of those for a project in 1.18.

@@Borkon what are your thoughts on a Double engine, one on each side.

@@aaronkostuik587 Not something I'm particularly interested in. Definitely won't work with this kind of instant wire. So it would need a completely new design of the bits driving it forward.

Paper and spigot servers have settings to disable TNT duping. Ask your server admin.

It does sound like it wasn't built correctly. Does the world download work correctly? I do have a bit in the video about how to debug the machine if it gets stuck, it should also apply to when it didn't move forward correctly.

I don't think it's a good idea, since you have to clear water and lava and gravel, but since so many people are asking I'll design one and post an update, watch this space.

@@Borkon okay, nice because I was actually going to use it in the end, I know I sounds pointless but it has it's reasons haha

that is easy, you just substitute the engine to a speed control flying machine and you are done.

@@logic0000 that is easy if you're not a noob at flying machines lol

This can't happen unless you made some mistake. Check if gravel is falling on the ancient debris (or next to it) which could prevent the TNT from flying forward. That's the only thing that could make the TNT in the duper explode. At least in normal Minecraft, lots of servers have weird mods that change the behavior of the game, so it's possible that something like that is happening.

@@Borkon I made the expandable tunnel bore. When I launch it most of the time it works it's just occasionally that tnt from one of the the 8 dupers triggers the original tnt. Theres no gravel or any obstruction in front of the duper. I only have utility Mods such as litematica, minihud, etc

@@Borkon NVM I closed and reopened the world it somehow started working properly. Thanks for such a great design and replying. It's rare for people to reply on older videos and help people

shulkercraft has a video doing it block by block if you are still looking for a block by block tutorial after all this time, there is also a world download where you can view the build

It works in normal Minecraft, so if there is an issue, it probably means that your server isn't normal Minecraft, which is a relatively common problem people ask about, although it's usually about TNT duping not working on Paper or Spigot. The note block shouldn't be unclickable, it should just be silent (which is why I wanted a block above it, it gets annoying to hear a changing note every few seconds for hours and hours). I don't know which server software or mods would make silent note blocks unclickable, but considering all the stupid things some servers do in the name of "performance" I wouldn't be surprised that some do. No idea which setting it would be. You can look at the video I made about the manual flying machine engine for different layouts for the engine. Some of them don't have the note block covered.

Thanks for getting back to me so quick! Will check out the flying machine video, ahhhh in that case it's probably the tnt duping that might be not working since it's paper, I assumed it must've been the noteblock since it wasn't making any sound! many tanks

Sure, I definitely use the various update tricks in carpet in creative, but it makes sense to design machines that can be built by normal people in survival.

@@Borkon true true

I would guess that the observer is turned the wrong way.

@@Borkon omg, lol. Thanks for the quick reply, appreciated. And yup, you are r8 XD

Hm. The instant wire can be extended by up to two blocks. So, I'd try to extend the two inner instant wires by one block, move the barrel pusher one block in.

I fixed it using this snipboard.io/nUJBaN.jpg I'm going to use the tunnelbore for making some room just under the nether roof for a world eater. Thanks a lot for the design!

Thanks for this, you answered my exact question -- and for the exact same purpose. Clearing a space in the nether for a world eater!

That is quite obvious, you build it at y11 and YOU ALWAYS FIRST CHECK FOR LAVA AND WATER AND CLEAR THEM. So i dont think that you need a warning but nromally its unlikely that it would happen.

5:40 lol

Yes. I assume that you mean water, not Walter. :) There is enough push limit to make it pull things behind it and someone even made a modification like that.

I mention that in the video. At around 1 minute in.

Java edition only.

@@Borkon nooooooo agh well that sucks

@@jacksonkincaid5734 I have a video about a tunnel bore for bedrock, but you need to craft the TNT manually and it has some kind of problem once every 10-20 blocks that I don't understand, so it's not very good.

There's definitely something weird going on with the instant line in 1.18 (maybe earlier too? don't know, only tried in 1.18). The dupers nearest the engine shoot slightly off. I've no idea why. I've done a 300x300 area three times with this bore though and survived, so I guess we're fine. (it probably even means that it doesn't have to be an instant line at all).

No. The only blocks that can be pushed by pistons and are blast proof are ancient debris and netherite. Not exactly sure what problem there would be getting ancient debris in survival.

Then you're probably on a server where the admins deliberately broke TNT duping.

@@Borkon it might be the case although that’s just a server we pay for two people and it’s very basic so i am surprised. Nice tutorial anyway! :)

@@manuelguillaud5700 Is it Paper or Spigot or is it normal Java Minecraft?

What you call a timer, a *movable* redstone timer, is a bunch of aligned observers/pistons that delays the subsequent tnt spit/blast of 40 ticks (4 seconds), which is the time for a primed tnt to explode. And it already exists: IlMango made it 3 years ago. :D Nonetheless, you might want to stop to manually silktouch ores and/or get more materials with a fortune pickaxe. Rather, you might want to stop and dry out lava or water before they crash the contraption. It's pointless almost more than impossible, to make *this* build fully automatic.

Does the world download work? If yes, then are you trying this on a spigot or paper server?

@@Borkon Im on a paper server

@@liam_itsnotimportant28 Then the admin disabled tnt duping. That's why the coral breaks.

There's a world download.

there are tutorials on this design by other youtubers if u really need a tutorial

@@shard7053 do you know any

Not with that instant wire, but if you were to adapt instant wire from other tunnel bores it would work. Some day I might look at trying to adapt this solution to be triggerable from both ends, but it will not be as simple as it is right now.

You need to light things behind you and be very careful about ravines since things can fall on you from above. The advantage is that even if a creeper blows up the machine, there usually isn't a chain reaction, so only one segment blows up and needs to be fixed. But a mob switch is a better option.

This is what happened to me, i built this underneath my base but since i had lit up a lot of caves nearby, the dark space behind the bore (I didn't bother to light it up, something i regret now) spawned a gigantic amount of mobs and i had to rebuild segments a lot since creepers blew them up. I removed the bore and went and set it up to a mushroom biome, where no hostile mobs can spawn. Much easier than a mob switch although you will run out of space eventually.

@@Borkon Thank you! I build a mob switch in my world and I got, once again, a lot of inspiration from your mob switch video, so thanks for your greate, helpful video content :)

Also, the server is noormal 1.16.4 minecraft and I tested it in a single world and it works. Also, I have a suspicion that its tick delay

What's tick delay? This is the first time I've heard of a problem like that. Normal Minecraft servers do anything weird to ticks, they just run slower. Are you sure it's a normal server?

יסוס

By "5 wide" do you mean 5 blocks between the barrels or 5 barrels? If 5 blocks between barrels that would explain the problem since that's too close and the TNTs can damage the barrels on the sides, the original is 7 blocks between the barrels for that reason. If not, then the question is: does the world download work in vanilla Minecraft and if it does (it does) what's different between the world download and where you built it. Some mods can change how entities work. Some servers behave differently because "optimization". Can't even begin to debug your problem without that information because there's an infinite amount of possibilities. In vanilla Minecraft when the barrels are 7 blocks apart the TNTs don't ignite each other, nor do they fall off the edge.

Ok I meant 5 barrels. Thanks for the advice and I will try the world download as well as moving them farther apart

Update: I tried copying the world file to a single player. It still blew up. So I went into the data packs folder and removed all of the data packs that were on. That still didn't fix the problem Then I built it with 7 blocks in between each cannon. Still blew up. I thought that maybe I needed pure vanilla Minecraft (I had optifine and lunar client) I tried using just the basic version of Minecraft. It still exploded. Anything else I could possibly try? I'm also in 1.15.5

@@dommapomma753 No idea what's going wrong then. Works just fine for me, I've had dozens of positive reports, I've seen multiple streams where people use this just fine. Out of over 4000 people who downloaded the world download you're the first one to report something like this. Don't know where to even start looking. Can you drop me a world download somewhere where I can look at how yours is built?

@@Borkon How should I do that? Can I email you?

No you cant make this exact design automatic, unfortunately

You would have to modify a good part of it

By fully automated, do you mean that it would keep going forward until stopped? That might make sense on smaller tunnel bores and I might try to do it at some point in the future, but with a big one it doesn't really make sense. You have to check for water and lava and obsidian after every explosion or really bad things will happen really quickly. Even casually clicking 4-5 times in a row can be dangerous (I've done exactly that, the repair clip was originally underground where the problem happened by my sloppiness, but it didn't look good so I redid it in the void world).

@@Borkon i cant afford much of those so i made 2 connected tunnel bores, but i want it to be afkable that i dont need to click the note block. Basically i need a timer.

@@akyyy6093 it might be slow, but you could use copper instead of a note block. Well, if an observer can detect copper aging

Does it work in the world download? If you power a piston and it doesn't extend that most likely means the piston is over push limit.

@@Borkon thanks for answering, solved the problem, forgot a temporary block so nothing worked, maybe it was a bit too much for my first Redstone/flying machine build, but now it works perfectly, absolutely amazing build!

Interesting. I have tested it briefly in 20w45a and everything worked fine, just tried a few loads and unloads (just by going to the nether since the world download has the machines in spawn chunks) and unless spawn chunks have changed behavior again, it didn't seem to have any problems.

@@Borkon Arent the spawn chunks always loaded, so the machine will work. Outside of spawn chunks the loading of minecarts will create a block update...

@@laurikoivusalo1503 Spawn chunks in 1.16 unload when no one is in the dimension. It's not a perfectly reliable way to unload things, but I know for certain that this has caused me problems with other machines before. I'll double check. Maybe something has changed.

@@laurikoivusalo1503 Can't reproduce. Even when placed far outside of spawn chunks and teleporting all over the place, the machine is stable. It does blow up when saved in 1.16.3 and loaded in 20w45a though, but after rebuilding in 20w45a it seems stable. Also, I wouldn't worry about this too much anyway, it's not just all TNT dupers that would break if things started working like this, lots and lots of redstone machines would catastrophically fail if loading chunks suddenly started causing unwanted block updates so I'm quietly confident that if a snapshot makes this happen it will get eventually fixed. Or we'll have to redesign everything and that can be interesting too.

@@Borkon I think its just about the minecarts (entities) being loaded seperately

Blocks on top of note blocks don't stop them from working in this setup, they just make them quiet.

@@Borkon it worked thx #makeminingeasyer

There's no simple answer, everyone will use a tunnel bore differently and it depends on how big you make it. Build one and test. A two barrel one is slower than beacon mining, that's all I've tested in survival since I don't need diamonds in a single player world where I have all the villagers anyway.

You can't move obsidian with pistons.

@@Borkon ooohhh😅

What kind of problem? Does the world download work?

Eh? Not sure I understand what you're asking. Put it at the Y level where you want to make a hole.

@@Borkon yeah, sorry about that. I meant what level would be the most efficient for diamonds? Sorry

@@pompkin2336 Probably 11. Lower than that and you'll need to deal with too much lava.

@@Borkon ok thanks:) you got a sub from me 👍🏽

There are a lot of tunnel bores out there that don't require ancient debris, but not this simple. Ancient debris being the first block that doesn't blow up but can be pushed with pistons is what made a machine this simple possible.

Yea, i like the simplicity of your design

Yes, it's possible, but I consider that to be slightly pointless since you'd have to stop all the time to remove lava and water. This is not a machine you can let run while afk. Lava and water prevent explosions from destroying blocks and that will make the tunnel bore get stuck (or even blow itself up in the worst case).

@@Borkon sure, i didnt thought of that, thank you very much for your reply :)

Yep, that is a true statement.

If you have movable block entities, yes. look at my latest video.

@@Borkon ok thanks!

Did you do it on a server that disables tnt duping?

@@Borkon no, it’s on a single player world

@@tritium_6760 ehm. does the world download work?

@@Borkon yes, although I’m pretty sure I just built it wrong (I fixed it)

Click on the first link in the video description.

No. You need to clear lava manually.

@@Borkon no like can you use a autoclicker and afk it

@@bobminiman2441 no not really the liquids will stop the blocks from blowing up stopping the machine because of no space to move forward so you could use an autoclicker but you will need to clear out any liquid

Yea

no

Does it work in the world download, and since it does, what is the difference?

@@Borkon Yes.

@@Borkon I think it was something with datapacks or carpet.

No.

He does have tutorials about this build.

There is no TNT duping on Bedrock. A machine like this would have to be very different on Bedrock if it's even possible at all.

@@Borkon ummmm.....ok. But i am shocked that you replied to me and so fast you are like so famous people like you don't even see the comments. So thank you so much for replying. And i got some knowledge too.😀

Yes, it was made in the current version of Minecraft, therefore it still works. Works in the 1.17 snapshots too.

Lava and water prevent TNT explosions from doing damage. And if the TNT doesn't do damage, then there is no hole for the tunnel bore to go through. You need to remove water and lava in front of it. This applies to all tunnel bores. So if by liquid proof you mean can you run it without removing water and lava then the answer is no. If you mean "can water and lava be on top of it", the answer is: I don't know, but since you'll be removing lava and water where it goes anyway, it's not particularly interesting to make it so.

​@@Borkon Ah i see, thx for the indepth reply!