I've said it before and I'll say it again
Useless machines are some of my favorite contraptions that you can build in Minecraft all you do is
Place down a lever and as soon as you activate it the machine actually kicks into gear
Breaks the lever and then switches back off again
It's a machine that is specifically designed to turn itself off when it gets turned on now this thing's pretty cool
But I think we can go a little bit further you see what I want to do in today's video is
Create the fanciest useless machine you can possibly build in Minecraft
And this is my idea for it now at this point in time
It doesn't have any wiring or anything like that, so we're going to have to do this manually
But the theory is that when we flick this lever right here that will activate this magic button lever circuit
Which will mean that this circuit is now activated and that will kick into action this part of the redstone
contraption which is going to push our piston up to this level
We're then going to push a block up to this level
But then going to need to make it so that this piston has been spat out so then we can retract all of this
Out the way, just like this grab that piston and that should just about do it
And then we need to make sure that we push this observer across push it up and push it up and that will be
What breaks our lever and then we have to go through the whole process of retracting everything
This is actually quite a meaty redstone circuit. I have to say so part number one is now completed
I managed to get the double piston extender circuit in place that was very simple consisting of well this observer
This repeater set to two ticks and this block so that should do the trick when we fire a pulse through it now
We have to do the actual triple piston extender, which then goes into a double piston extender
Which will then make everything work? I must admit
I'm doing things in a bit of a weird order here
But I thought it'd be a good idea to also set up the observer
Double piston extender circuits when we shoot the observer up to power the sticky piston that is going to push across into our lever
That is all going to be done at using this little redstone circuit right here, which will shoot this up
And then retract it now. Let's just quickly make sure that that will actually work, so this is our sticky piston
This is this block and we should see
That was pretty good, so it extended and retracted and then it pulls the observer out the way nice okay now
It's time to actually do the triple piston extender
So the first challenge with this was trying to work out where each one of the inputs is going to go wrapping around the different
Circuits I already have in place, but this seems to do the trick so we have these three on this side
And then we have these two on this side
Then that input is for that observer and this input here is for our little observer shoot up and retract circuit as well
Right so now we need to work out the timing so we need to make sure that this
Down on the bottom here stays extended for the longest this one here, which would be powered by
This I think you had this one needs to stay extender for the second longest
And then the observer will fire spitting out the blocks and the whole thing needs to retract then it needs to be extend
Then it needs to retract again
Which we are making pretty good progress on so what I've done is I have created the extension sequence
So there we go with that has spat out that sticky piston right there
And that is going to be chilling out up at the top and then all we have to do is
Make sure that we can actually grab that back down which
That was odd. I
Wasn't actually expecting that to happen? I don't really know what happened there that
Was a bit strange. Yeah, it turns out what I did just there doesn't actually work
I've made some slight modifications to the circuitry
ooh and now it's looking good
Now that's looking good because then when we unpowered it. Hopefully nothing strange should happen nice. This is good
Oh, this is hurting my head
I'm doing funny things. I don't I don't know what I?
Don't know how to get this back down
There's so many different circuits intertwined with one another and just to add more salt to the wound
I just had it all working and now I've broken something really important, and I can't tell what I've done
Genuinely cannot tell what I've done
Aargh!
But thankfully we have now pulled it off so if I hit this button down on the bottom here
You can see that we get the full triple piston extension
That spits out the piston up at the top there which will be doing all the extension retraction
And then we hit the button again and that will fire
And it will retract to the full sticky piston so that means that we've got ourselves a fully
functioning triple piston extender circuit that we can use reliably we just have to run inputs into it we can repeat it over and
Over again, that's all good. Okay, so now
What do we have to do now? I don't really know so now I've actually got this thing hooked in into our lever
And I've also added in the double piston extender circuits
Which that is doing ook
Ok so that observer there is actually powering this circuit for a second time
How do I fix that
I think I can just run a redstone line over
the top make sure that this is a half slab or something and
Then we can run the comparator in on the next level
yeah, yeah, yeah ok problem solved that was scary and now everything is looking really good flick the lever and
There we go so part one of the circuitry is in place now
we just need to do the observer push across the observer push up the observer retraction, and then the observer pull back and
Doing that will destroy our lever
Which will then activate the falling edge side of the circuit which will essentially undo all of the things
We've just done right here sucking it all back down into the ground now
Hopefully if we hit this button right here this should test out
Ok so that retracted it way too quick we need to have
We need to have some extra delay there
So I'm going to add a few extra comparators to a comparator pulse extender
And hopefully that will just extend out that pulse just a little bit longer so that we don't actually
Retract the piston as opposed to observers. Let's try again, so observer goes across you get that
Still rettracting way too fast
Maybe get an extra comparator in there. I don't really know to be honest with you. Let's try again observer
It goes across it gets pushed up
That's what I'm talking about
That's what I wanted to see so now we see if that observer firing off every two seconds
It is going to cause havoc with the rest of the circuitry
Let's have a look so we flick the lever downwards like this that will activate all of this
That all looks pretty good, and then we wait
Oh my word so we just destroyed the lever, I mean we need to work on this delay
It needs to be a tiny bit shorter, but no way
That actually just worked and then we just need to fire this and the triple piston extender and the falling edge
And that's this entire thing done
Oh my word, I'm so excited and now things have been sped up just a tiny bit so the whole system
Actually works pretty fluently as you can see here
good stuff
First half is done
So the triple prison extender is now all activated now all I need to do is link up this red line here
That is coming out from this piston, which is our falling edge monostable circuit somehow
That needs to go
into this green area
And I actually think we might be onto a winner with that little corkscrew that I think we've just pulled off
Which is going up and over like this
So that will go up like that
I don't think that's interacting with anything
And then we're going to need a repeater set to four ticks to make sure that this piston doesn't spit out it's block
And that could potentially be all it. I'm just gonna quickly triple check everything and make sure that it's all good
But fingers crossed this is all the circuitry done so here goes
Placing in the lever. We give it a flick
and all of the Pistons pop up
our piston then breaks it
And it retracts back down into the floor! Oh my word it actually works. This is the best thing ever
Oh that is fantastic and look the whole thing is completely flush with the floor obviously we have to have some carpets
Because that's how this magic button or lever thing works, but I cannot actually believe that we have managed to build this thing
that's so amazing
Oh that is hilarious. I mean it takes quite a long time
That is fantastic I wasn't actually expecting to be able to build this thing
Originally when I first constructed it so when I first built it
I didn't actually have a sticky piston at the block why I had instead was the regular piston that
Would pop out of this area here, so I wasn't going to do anything with this block
It was going to be a regular piston which pops out in this area
But you see that was a bit of a problem because if we just quickly remove this I can quickly
Demonstrate that when the piston pops up as it popped up
It will be updated
And then it would get stuck like this so I had to come up with an entirely new
Circuit with all the double piston extenders and the sticky piston block pushes and retractors and everything like that and as I say
Wasn't 100% certain I was going to be able to pull it off, but we did and it works
And it looks absolutely amazing. This is by far one of my favorite redstone contraptions. I have created
I absolutely love it. I could use this thing all day long so there we go and that is everything
I hope you enjoyed this little Minecraft challenge
This was a really fun one to take on be sure to submit your
Suggestions down in the comment section down below and also on Twitter, or be take a look through them
but for now
I hope you enjoyed if you did please hit that like button if you really loved it, then make sure to subscribe
But thanks for watching guys. This has been Mumbo, and I'm out I'll see you later
Oh, and yeah standard filming channel stuff. You know, link on the end screen