Redstone in Minecraft is most commonly found deep underground in the form of Redstone ore. When mined, it gives Redstone Dust which can be used by players to create complex redstone circuits.

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Can I build a TNT cannon that fires the TNT directly upwards?

I've successfully built a cannon that will fire the player upwards to above the clouds by using this design (found on YouTube). The player stands on the stone pad, it triggers the TNT and the "water ...
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2answers
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How to generate a predetermined number of pulses?

Motivation: I have a grinder that spawns spiders which are then moved to a very small space. When they accumulate in big enough numbers, I pull a lever and let a piston crush them 11 times. Then I can ...
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When do redstone torches burn out?

I know that if I make a redstone circuit that switches too often, my redstone torches will 'burn out' and stop working. Under what circumstances does this happen? Will a slow circuit eventually burn ...
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How can I get my redstone to activate adjacent pistons?

I'm trying to create my first circuit in minecraft: a - pressure plate p - piston d - dirt - or | - redstone   a----dddd pppp Pistons are placed over the dirt and there's water under ...
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5answers
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Is there a more efficient way to wire a row of pistons?

I want to create two sets of two adjacent pistons with a two block gap between them for a melon farm. It seems as though I'm using a prodigious amount of redstone for each section. This is my first ...
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2answers
866 views

How can I pause this redstone wall rotator as nessecary?

Back...with another Minecraft device. First off, I remember seeing a device like this on Reddit/YouTube a long time ago, and I've since forgotton how it was done. The way the device works ins ...
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1answer
319 views

Redstone loop not working

After building and exploring in Minecraft, I chose this sticky piston mob grinder to learn about redstone - which may have been a bit too ambitious, as I'm having problems with the loop which sends ...
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2answers
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How can I create a “master” switch with redstone?

How can I create a "master" switch with sub-switches all connected to the master switch? When then master switch is turned on, it allows power to go to all the sub-switch (when the sub-switches are ...
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Is there a way to shut down a Nether portal with redstone?

Since it is no longer possible for flowing water to deactivate a Nether portal, you can't use pistons to push blocks into the nether portal and finally you can't move the obsidian powering the portal ...
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3answers
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How can I get this redstone blast door to do what I want?

I'm working on expanding my Minecraft Redstone experience and contraptions. Here, I have a 2 blocks high x 3 blocks wide section of a tunnel with a track approaching it that is meant to act as a ...
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2answers
529 views

Why do two identical redstone contraptions not do the same thing?

I was experimenting with redstone manage to build the first example were everything works thine. I've built the exactly same thing in my building but there it won't work any ideas why? (the delay is ...
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5answers
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How do I make a 1x1x2 piston door that opens when I step on a plate and not the other way around?

In Minecraft I need to make a piston door that opens when a plate is stepped on, it is normally the other way around. Does anyone know how? A video would be helpful but not required.
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Changing delay with NOT gate?

I just asked this question 30 minutes ago and was told to use a NOT gate It worked at first, but I had to delay one of the pistons 100%. The problem is when they are to go back to the starting ...
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1answer
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Activating one piston while deactivating another at the same time?

I just wondered if it is possible to activate one piston while deactivating another (activated) piston with the same lever. The idea is to pull some blocks into the wall while other blocks are pushed ...
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2answers
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Is there a way to keep a clock ticking with no players logged into SMP?

I'm planning to build a clock tower for my SMP server; however, it's occurred to me that my plans have a gaping flaw: when nobody's online, the redstone clock won't keep time. I'm using vanilla, so ...
6
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1answer
3k views

How can I build a simple flip-flop with Redstone?

I've been trying to learn more about Redstone after doing some research for another Minecraft question. I've never played Minecraft before, although I'm familiar with Terraria, which I believe is ...
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What are some good novice applications for redstone circuitry? [closed]

I've just decided to finally bite the bullet and learn redstone circuitry in minecraft. I'm already familiar with logical circuitry, and the minecraftwiki page about redstone circuits is certainly a ...
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4answers
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How can I generate a redstone signal when players are near?

Is it possible to construct something that will run automatically whenever a player is nearby, say within a chunk's range, without that player having to trigger something like a pressure pad or ...
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0answers
314 views

How can I make the effects of button pushes last longer? [duplicate]

Possible Duplicate: How do you lengthen a redstone button signal in Minecraft? I am trying to create a piston-powered 3 x 4 doorway (with no visible pistons!). I have tested my machine ...
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2answers
628 views

Error with Double-Dabble decoder

I'm using a Binary to BCD system using this double-dabble decoding device. It all seems pretty good, but it doesn't work properly. If you are unfamiliar with double-dabble, it should take an input, ...
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3answers
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How to channel Redstone current vertically?

I'm making a door with piston sliding sideways that reacts to pressure plates. As the pressure plates are sending the current to redstone at a very low level, I need to raise it somehow, and this ...
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1answer
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How can I make a functioning piston elevator in SMP

I've recently been trying to build a piston elevator in SMP from bedrock to the surface. However, every design I've tried (some of my own, and some from Youtube) results in me getting stuck in a block ...
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1answer
466 views

How to simulate polyhedral dice in Minecraft?

A dispenser can simulate dice of up to nine sides by random choice, and there are redstone circuits for simulating six-sided dice. But how do you simulate, say, ten-sided, twelve-sided or twenty-sided ...
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1answer
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How to simulate a deck of cards in Minecraft?

A dispenser can eject one of nine different items at random, simulating a deck of up to nine cards (as of 1.6 it is no longer biased toward certain slots). How would you simulate a deck of cards with ...
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Giving a minecart momentum with a piston

I am trying to setup a situation where I press a button and a minecart is pushed onto some powered track where it is then boosted up and giving a good speed. This is what I tried (cross-section): ...
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1answer
571 views

Redstone torches spasming out?

In my server when i place redstone torches and work on something else while on the same chunk the redstone torch can sometimes flicker even when on its own.
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Keep some chunks loaded in Minecraft SMP

I am looking for a mod or something which would allow me to keep some chunks loaded on the SMP server I administrate. In fact, it is a redstone circuit including a clock under a huge mob trap which ...
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Fixing permanently dead redstone torches in Minecraft?

There seems to be a newish bug in Minecraft where redstone torches burn out sooner than they ought to, and never recover. (I think I heard that this can happen if you use /time set, but this is a ...
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How do I create a very long delay with Redstone?

The only things I've found so far are a cart method (which ceased working in 1.6), a dispenser method (utilizing the decay on dropped items, but this requires occasional feeding), and a binary counter ...
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2answers
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How can I preserve an active redstone circuit when I leave the chunk it's built in?

When I set up a redstone circuit for rotating blocks (with pistons) or flashing redstone lights, everything's fine, but when I exit that zone, the current is not saved, and when I return later, the ...
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3answers
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How to make flashing lights in Minecraft with repeaters?

What is the best circuits for flashing lights with repeaters ? I've seen old school way with redstone but now with the repeaters, how to do it right ?
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How do I power Redstone through a block?

I have seen this in YouTube videos: a person places a Redstone Torch on the wall like in the picture, and it activates a circuit. No matter how many layouts I have tried I can't seems to get a power ...
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How do you lengthen a redstone button signal in Minecraft?

I made a little redstone circuit to open a door (using pistons) with a button, but I was wondering how I could make the door stay open a little longer. I don't want to use a lever as I want it to ...
6
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2answers
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Powered rail on a slope powering glitch?

I have placed a powered rail on a slope with a redstone torch underneath it as shown in the following two pictures. Now as you can see, the powered rail is in fact unpowered, despite the redstone ...
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Powered rail not powering down

I've built an underground minecart track to allow me fast travel between two outposts. In the middle I've placed a powered rail, with a long redstone line to each post. I connected these two to a ...
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5answers
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How do I create a hidden staircase?

I'm currently trying to create a hidden set of stairs (made of whole blocks, not stair blocks) by having pistons stacked on top of each other, so that when it's deactivated it looks like a flat ...
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1answer
625 views

What is going on with these pistons?

I was messing around with pistons today, and I cam across this weird senario whhere they are not working as expected. I took some screenshots, they are Here and are in order. I have three pistons on ...
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3answers
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How do I reverse the activation of Pistons with redstone automatically?

So basically, I want to make a hidden Piston door using Redstone that opens and shuts when I pull a lever. ...
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3answers
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Minecraft “power ripple”

Does there exist any known way to create a "power ripple" using redstone; i.e. a situation that is, essentially, just like a sequence of wire-repeater segments, but powering every intermediate block, ...
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2answers
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What property of redstone torches allows activating stacks of items?

Looking at this video about the new pistons in Minecraft 1.7, he has arranged 3 horizontal-pushing pistons in a stack vertically and is using an alternating pattern of redstone torches to activate ...
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Is there a maximum limit to the number of blocks a piston can push?

For example: could you effectively push a line of blocks off into the distance? Is it limited by the loaded chunks? Or a shorter upper limit countable in blocks?
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2answers
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Is it possible to lift a block from the bottom of the map to the top using pistons?

Can you raise/lower a single block by an arbitrary distance using pistons? Will this work with chests?
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8answers
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How to find a player's redstone clock (or other aggressive circuitry)?

I'm an admin for a minecraft server where I suspect one of the players has set up a fast cycle redstone circuit. The reason is the server uses what seems to me to be too high of cpu for only one or ...
5
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2answers
700 views

How can I make a S/R latch with adjacent inputs?

The Minecraft wiki suggests this: ...with this being the key to the diagram. The way I read it, the set and reset wires run into two blocks. On the opposite side, put a torch on the set side, ...
12
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2answers
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Bidirectional (two-way) repeater?

I have a long section of rail that I'd like to serve with a single minecart. If I left the minecart on the other end of the railway, I'd like to push a button to have it sent over to the station I am ...
10
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1answer
8k views

How do you power consecutive blocks from below to make a large hatch?

The typical way to close/open several hatches in a row (e.g. to make a drawbridge) is to just lay a wire across the top of all the blocks the trap doors are attached to. How do you accomplish the ...
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1answer
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What's the best way to build a track selector?

I'm building a new terminal for my minecart tracks: Currently there are 8, I may add more later. What I'd like to add is a single arrival/departure track, with buttons to select destination. ...
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Is it possible to invalidate a dispenser after it has been used once?

I am making a map in Minecraft that other people can play. I have a dispenser with an iron, golden and diamond sword in it. I want the player to be able to use this dispenser only once. How would I do ...
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How far can redstone current travel?

I know that there is a 15 block limit before a repeater is needed, however I am looking for the TOTAL distance that current can travel. Is it infinite? Can I keep adding repeaters and go on forever? ...
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Making a Station With Redstone Booster Track

Now I have finished my underwater tunnel I have built somewhere for my railway to stop at. The cart comes in from the left, hits the booster and then hits the sloped booster track (unpowered). I am ...