41
votes
Accepted
Why isn't my sorting system picking up eggs?
Short answer: If you are trying to filter an item that has a stack size of 16 instead of 64, (like eggs, snowballs, signed books, etc.), then at 10:28 of the video, use 38 redstone dusts instead of 41....
- 12.9k
26
votes
Accepted
Why are these pistons pushing?
You are experiencing quasi-connectivity. You have actually produced a BUD (Block update detector).
The power source is the redstone line above. I have built an example to demonstrate.
Here it is ...
- 5,683
26
votes
Accepted
How does a redstone pulse generator work?
No, Minecraft is not hardcoding the pulse generator. There is a specific logical progression that makes this circuit make sense.
Here are the steps that occur.
On the first tick, the player activates ...
- 12.9k
17
votes
Accepted
How to make one wide tileable, vertical redstone in minecraft
In 1-tileable redstone either avoid dust like a plague or painstakingly engineer the power levels it emits. There are many techniques for transmitting signal in 1-tileable way, and using the best for ...
- 18.2k
12
votes
Accepted
How do you turn off a redstone torch?
Power the block which the torch is attached to. It must be an opaque, solid, full block (so not glass, side of stairs etc; in particular glowstone and sea lanterns also count as transparent). You can ...
- 18.2k
10
votes
How can I randomise the output of a redstone circuit?
This question appears to be the main attractor for any and all questions involving creating a source of randomness in Minecraft, but most of the solutions are spread over related/duplicate questions. ...
- 8,752
10
votes
How do you make an item frame turn activate a redstone source?
Item frame rotation based output. This is not my design.
The item frame does not rotate, an item in the frame does. Some items have to be rotated fully twice(example: maps) in order to output ...
- 5,683
10
votes
How to halve redstone signal strength?
I built a gigantic complex circuit that converted signal strength to time using comparator fadeout and then back to signal strength using locking repeaters, then I built a simpler circuit based on ...
- 20.7k
9
votes
Is it possible to modify this Minecraft contraption to make the cart leave if it is full?
My solution isn't the prettiest, but it works.
First, a full minecart on top of a detector rail with a comparator emits a signal strength of 15 (Full cart - 1 item emits 14). We can also subtract ...
- 1,788
8
votes
How do I use redstone repeaters to stretch the redstone limit?
Add more than one redstone repeater. A redstone signal will only stretch for 15 blocks before disappearing, so add multiple repeaters to extend the travelling distance of the signal to the pistons.
- 7,065
8
votes
Why are these pistons pushing?
This seems to be caused by the famous bug MC-108. If you turn off the redstone line, the pistons first stay extended, but when you then place a block next to one of them, the line retracts. That's ...
- 20.7k
8
votes
Accepted
Toggle redstone circuit
It looks like you need a memory circuit. You can face two droppers into eachother. The pressure plate powers the first dropper, the button powers the second. You need 1 item inside one of the droppers....
- 1,764
8
votes
Accepted
Does redstone work on stair blocks?
Yes. Although you can place redstone on upside down stairs, stairs can't power any adjacent blocks. You'll have to use a full block. You experience the same behaviour when you use glowstone or slabs ...
- 1,764
8
votes
Accepted
Powering an offset stacked array of pistons
Something like this? It can be powered and extended until the redstone limit.
- 1,314
8
votes
Accepted
What is overflow protection, and how can I build a simple yet effective overflow protection "unit" for an item filter in Minecraft?
Answering the first part of that question:
An overflow protection means either an addition to a storage-related circuit or a modification to it, which makes that circuit not misbehave when you either ...
- 20.7k
8
votes
Accepted
Is it possible to modify this Minecraft contraption to make the cart leave if it is full?
This is a nice, compact, simple setup that works most of the time.
In particular, it will send the minecart away when the bottom hopper is empty (meaning the farm ran out of items) or when the cart ...
- 18.2k
8
votes
Accepted
How to break a sand block without touching it in Minecraft?
Frits34000 and a couple other redditors for a good while worked on 'sand quarry' machines - you can find the assorted designs on r/redstone.
The gist of it is to lift the sand block using a sticky ...
- 18.2k
8
votes
Accepted
Powering a redstone torch on a block adjacent to a redstone lamp without powering the lamp
I assume by "powering the redstone torch" you mean to turn it off. The torch checks if the block where it is attached is powered. The redstone lamp checks if any adjacent block is powered. ...
- 8,010
7
votes
Reduce Minecraft Redstone lag
As an Intermediate Redstone-er, I'd recommend doing the following:
Convert long Hopper-Lines into Water Stream Ways, example for if you don't understand my terminology on this:
The packed_ice helps ...
- 301
7
votes
Accepted
How to halve redstone signal strength?
What about this?
When you make your input two units stronger, your output increases by one.
Edit:
This is rather slow, because it takes up to 8 ticks (one for the last repeater plus one for each of ...
- 261
7
votes
Accepted
Help with comparator and Hopper (Minecraft Java edition)
The bottom comparators are facing in opposite direction than they should. They are supposed to read the lower hoppers (with the 'two sticks' side, through the block) and power the blocks underneath ...
- 18.2k
7
votes
Accepted
What is the fastest way to transport large amounts of block a large distance without hoppers?
Don't count on fully automatic system - there's a pretty unlikely scenario where it would be semi-practical: if your farm is very close to an end portal and the destination is very close to world ...
- 18.2k
7
votes
Hopper disabling with redstone
Welcome to the world of 1-wide tileable contraptions.
Redstone dust is one of worst choices, very restricting - you need a very precise distance from power source to the receiver, equal to the power ...
- 18.2k
6
votes
Accepted
Why does this piston get power?
It is being powered via quasi-connectivity. An interesting quirk with redstone which is not a bug. It is an interesting one, I will use pictures to demonstrate your circuit but if you click that ...
- 5,683
6
votes
How to deactivate a hopper without activating a dropper directly below?
This is impossible, because of the bug MC-108 (currently closed as "working as intended", but the proper resolution would be "won't fix"). A dropper always activates when the position above it is ...
- 20.7k
6
votes
How do I fly with Elytra in Minecraft?
You can glide with the elytra by pressing 'spacebar' while falling in the air, this will activate/open the elytra and you will start to glide.
However, you can also use rockets to propel yourself ...
- 1,673
6
votes
Can dispensers (with a bucket) empty a cauldron?
No, that is not going to work. A dispenser cannot perform that type of functionality. This also applies to attempting to dispense into cauldrons, it will just dump a full bucket out.
Strangely enough, ...
- 12.9k
5
votes
Accepted
How to output signal when someone stands on a pressure plate for three seconds?
You can use this contraption, where the output is the redstone torch on the right.
But make sure the hoppers face into each other!
How does it work? In the default state the hopper with the items in ...
- 1,940
5
votes
Accepted
Keep some chunks loaded in Minecraft SMP
Minecraft 1.13.1 and newer versions have a /forceload command:
/forceload add x z
Where x and z are the coordinates of the chunk you want to load (specified as number of chunks from 0,0), not the ...
- 3,981
Only top scored, non community-wiki answers of a minimum length are eligible