Carpet Duper

Carpet Duper design

Carpets are really good as fuel, which only last 67 ticks. But the good part about this fuel is, you can multiply it with some little glitch. And with proper planning, we can set up an entire facility that can dupe carpets, supply them to furnaces and smelt the items all on Red stone contraptions.

How This works

The game is coded to remove the carpets if the block below is destroyed. A similar Lantern can be hung or put on the ground or fence pole. And when the block is destroyed where Lantern is connected, it is removed as blocked and turns into a pickable item. And the same goes with Carpet.

    When Sticky Piston is pushing and pulling the Slime blocks which are connected to carpets. The game Registers this as "Breaking" of the lower block, But at the same time, Carpet is stuck with the slime block. So it stays in position. And because the game has no code to count the number of carpets when this happened. Carpets get duped and we have 1 carpet stuck to Slime Block and another one as a pickable item. And this is how this bug works.

How to Build Duper

Slime Block
Coral Fan
Carpet

Sticky Piston

Look at the design below and see how they are arranged. There is Coral Fan on the lower side, and carpets are placed over each other as long slime blocks are tall. The Coral fan is only for supporting the carpet, as it can stick to the piston and can't be broken by moving.

Hopper Clock

There is a simple design of the hopper clock. Hoppers are connected to each other to put a single item into each other.

When Hopper is filled with 1 item. It gives 1 level of Redstone signal from the Comparator. And it is enhanced by a repeater to extend full strength signal.

To start the clock, the lever is turned off, so the power supply unlocks the hopper and it put the item into another hopper and comparator gives the signal, and it sends it to the pistons by repeater. And the cycle continues as long as both hoppers put item into each other and the signal is pulsing.

To end the cycle, on the lever so it locks the hopper, and when the second hopper put the item into it, the first one can't send it back. And thus the signal pulsing ends here.

Furnace Collection system

There is diamond shape design where smelted item transfer from the upper and left sides, and bottom and right sides. This help to avoid much item traffic coming from furnaces.

And this ended up in a Large chest where all items are stored.

Water Canal System for Fuel

This is a 10x10 block size pattern, where 6 hoppers are in one line. It contains 4 solid blocks, 1 Packed Ice, and 1 Iron Trapdoor with water block.

    In the design, you can see that there is 1 Iron Trapdoor, just above the packed ice and it avoids flowing water into another stream. It is important to keep the flow in one way, And all the carpets circling on the fuel supply lane.

Hopper Slots arrangement

Hoppers can stack up to 5 carpets, which is more than enough. And to avoid it we can add some items which cannot be used as fuel in Hoppers. For Example, I m using Cobblestones in the video, but Redstone here helps to pick only 1 stack of carpet and let flow more for other hoppers and furnaces.

Railway for Item distribution

The railway can be used for distributing the items for smelting. It is an 8x8 railway square that stated over hoppers and returns the same path after distribution. We are using Minecraft chest to have more slots for smelting.

Here is the design to set up powered rails and corner rails. Just be careful about the edge of that line, Because most of the time the railway tries to merge together to make a loop. So be careful, it may take many attempts but ensure they won't get into a loop.

Special Note

Many may use the Observer clock because it gives faster ticks. But please don't use it, Because if pulses are too fast sometimes even the sticky piston doesn't pull back the item. And For proper working system needs a clock that sends pulses lasting more than 1 tick, so a sticky piston can push and pull easily.

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