INFINITE Furnace Fuel using Crafters in Minecraft 1.21

In this Mumbo Jumbo Minecraft redstone video, we take a look at creating an infinite furnace fuel super smelter using an automatic kelp block crafter. This industrial super smelter takes kelp from a fully automatic kelp farm, automatically smelts the kelp using a furnace array, then sends half the kelp blocks to a giant Minecraft super smelter. All in Snapshot 23w42a for Minecraft 1.21.

[ThatMumboJumbo]

I completely forgot that kelp is counted as a 'smokeable' item. Swap out the furnaces for smokers and it doubles the speed if the system. Not that it matters massively, as the bottle kneck is the size of the farm and not the system, but still.

FAQ:
1. Could you replace the item splitter with just letting the furnaces fill up? No, because of item elevators - the items would get stuck in the elevator!
2. 80 items per furnace!? Yep - there's a hopper above!
3. Could this be simpler? Maybe, but it's actually really simple, just super compact so it looks more crazy.
4. What if it backs up? Not sure! If I were building this in my own survival world I would have an overflow switch; Or make it so the items divert over the furnace array into a bulk storage system.

[Mr_Ebuh]

crafters are perfect for honey farms, no longer do you need an insane amount of bottles. you can just automatically cycle them :)

[katier]

Considering how many farms I've seen that require manual crafting to operate, this block is nothing less than revolutionairy.

[evanchilson]

I'm kind of loving the tiny conflicts between Recording Mumbo and Editing Mumbo

[duhduckdragon]

i may have no idea whats going on or how redstone works, but i sure do enjoy seeing people who do understand it have fun figuring this stuff out.

[quinnlee-miller]

I cant wait to see Mumbo somehow use the Crafters to somehow make new flying machine that makes you your tea and colonizes for you

[startoon]

I don't know if mumbo will see this but you can use smokers to smelt kelp instead of normal furnaces to speed up the process!

[KBRoller]

Good news, Mumbo: the accidental BUD issue at 5:45 is a bug that's been fixed in today's 23w43a snapshot 🙂I also struggled with it in my own designs, so glad to know Mojang fixed it so quickly!

[MisterMoodyHere]

2:29 “I could do something with the fact that observers can observe”

- Mumbo Jumbo, 2023

[dexterity]

One thing I've always wanted is a furnace type that stores its unused heat meter. Would be very useful for lava bucket usage, and would remove your situation at 1:45

[CringyGull]

I love how whenever a new redstone component is added to the game, we can count on Mumbo making at least 3 consecutive videos about it 😂

[LinktotheFuture-zskm]

It’s surreal how much is possible with the addition of ONE block

[NicoleSchultz]

So happy that kelp is finally getting more attention! I've been using it for years and felt like it's been underappreciated.

[SharkyShocker]

I'm glad you're having so much fun Mumbo! There's so much you can do.
I'm curious when the "Remote Crafting Table" will be done, presumably from a storage system. There are many ways you could go about it.
Presumably you wouldn't need to make it accept an input for every item in the game. You don't use shields or iron pants for crafting. However, things like cobblestone, iron, sand, redstone, and so on you do.

Unfortunately, it's difficult to get the items to come out how you want depending on the shape of the item... So really, your best bet is to have an auto-crafter with every pre-set shape that is used for crafting. Then in terms of inputs, you have a series of levers with item frames. Presumably, you can also just have presets for the auto-crafters depending on how many you have.

As with any big project, the first step is starting out small though. A 3x3 acts as a 1x1, 2x1, 3x1, and 3x2 all on its own. Then just make a 1x2, 1x3, 2x3, and a 2x2. That's a majority of crafting recipes right there. Armor and tools will be a pain. Though the real challenge likely won't be the size, it'll be getting the items to go to the correct crafter without getting stuck in the wrong pipeline. Or worse, what happens when you put in the wrong recipe.

Obviously it's easier to just be given the items, but can you really call yourself a Redstone Expert if you can't craft from 6 chunks away?

[Pat_the_M]

In Hermitcraft Seson 7 and Mubbo was complaining about how he had to craft all the gold nuggets into gold bars, and I was like
"If only there were auto-crafters, to bad Mojang will never add those!"

[JayExecutor]

This is awesome. Now it just needs to feed into an automatic sorting/storage system so everything you smelt gets automatically organized by item type. Just a full storage wall of exclusively smelted items in silos that you never have to manually sort or find later

[Firas-Ahmed]

Mumbo: Fairly simple design.

What his building: A Millennium Falcon auto-farm.

[bendyhouse]

An idea for a follow up video is a bamboo farm that crafts bamboo blocks then crafts bamboo planks to use as fuel. Bamboo planks are a bit more efficient compared to an equivalent amount of bamboo. Love the videos Mumbo!

[Aka-]

Using kelp to automatically fuel your smelting system is definitely going to be the future of Minecraft. Thanks Mumbo for another great video!

[RamDragon]

In a traditional item sorter, advantage is taken of the fact that hoppers pull faster than they push, so items are pushed across until they reach the hopper that will pull it in. I'm surprised you didn't just loop a hopper line or water line around to feed the furnace then push across to bulk storage once the feeding hopper is full.