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The 'Iron Puppet Trap', also known as the 'Brush Iron Machine', utilizes village mechanisms to produce by-products such as [Iron Ingots] and [Wire] (produced by [stray cats]). Usually, an Iron Puppet Trap is an artificial village that can generate [Iron Puppet] and then kill or transfer it to an external area.


Overall Requirements

The generation of iron puppets requires sufficient space (2 × two × 3) . The generated surface must be flat and composed of solid blocks (excluding steps), with at least three air blocks above it.


Java version

If a villager has slept within the first 20 minutes and has not observed an iron puppet within the first 30 seconds, the villager will have the intention to generate an iron puppet. Villagers will observe whether there are iron puppets around every 5 seconds, and they will only be observed when the distance between the iron puppets and each coordinate axis of the villager does not exceed 16 grids (regardless of whether there are obstacles between them). Villagers can spread their opinions at most once every 60 seconds, and those who generate their will will attempt to generate an iron puppet while successfully spreading their opinions. If there are another 5 willing villagers (totaling 6 villagers as a group) within 10 squares around the village (with the same ranging mechanism and observation iron puppet), the iron puppet will be successfully generated.


After the Iron Puppet is generated, the villager and all other villagers within 16 squares around them will enter a 30 second cooldown. After that time, they will continue to observe whether there are Iron Puppets around them.


After 1.16, the villagers did not need a profession to generate iron puppets. The only two restrictions were that they had slept within 20 minutes and had not seen any iron puppets within 30 seconds. When using threatening brush iron, villagers will attempt to generate an iron puppet every five seconds—— [ https://www.bilibili.com/read/cv7024898 1.16 Code Interpretation of Iron Puppet Refresh Mechanism for Various Versions [verify]

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Bedrock plate

The generation of iron puppets in the bedrock version does not require the villagers' work location and sleep as prerequisites. The conditions for the generation of Iron Puppets are listed below:


  • At least 20 beds in the village
  • There are at least 10 villagers in the village, and each villager needs to bind a bed.
  • At least 75% of the villagers have professions and are able to meet the conditions of being adjacent to their work site blocks.


The excess of the number of beds and villagers does not seem to greatly affect the single generation probability of the iron puppet, but every 10 villagers will increase the refresh limit of one iron puppet. Therefore, while ensuring smooth game operation, increasing the number of villagers as much as possible can improve generation efficiency.


In addition, the refresh range of the iron puppet is related to the position of the last bound bed (rather than the last placed bed) of the villagers, and is not related to the position of the clock.


Iron Puppet Refreshes Absolute Range: The last bound bed position of the villager, biased towards a 17 in the average position direction of all bound beds (until this range includes all beds) × Scope of 17. If the range is large enough, the final bound bed position will become the center of a certain edge

Maximizing rates

The rate of iron ingot production in an iron golem farm is determined by three factors: the number of spawnable blocks, the number of villagers, and the average lifetime of each iron golem. The most efficient farms achieve rates around 400 ingots/hour.

The maximum number of spawnable blocks in a farm is 512. This is achieved by two minimum 16×16 solid block platforms centered horizontally at the village center, with one platform four blocks under the village center, and the other platform a block above the village center. In farms designed for maximum rates, the beds are usually arranged tightly around the horizontal center on the Y-level just below the upper spawn platform. This allows iron golems to be transported underneath the beds and ensures that the Y-level of the center does not shift. With 512 spawnable blocks, 98.3% of spawn attempts can succeed.

Increasing the number of villagers allows additional spawn attempts to succeed during the time it takes to transport and kill existing iron golems. In a farm using water to transport iron golems and lava blades to kill them, increasing the population from 10 to 20 increases rates by about 33%, and increasing the population from 20 to 30 increases rates by about 5%.

The average lifetime of iron golems depends on transport time and kill time. Most farms use water to transport and lava blades (lava suspended on collisionless blocks such as signs or open fence gates) to kill. It is also possible to use rail systems, although rail systems are likely slower than water. Other kill methods such as magma blocks, skeleton arrows, and trident killers are slower than lava. However, trident killers can kill faster than lava if the tridents are enchanted with Impaling V and the iron golems are kept in contact with water. Note that if you use a trident killer, you do not gain experience, and you cannot use Looting.

Survival mode build: Iron golem village

Village converted to iron farm

A village converted to an iron farm.

A village can be converted into an iron golem farm that requires no exotic materials, but patience and time to set up. It can be constructed early on in the game for an early source of iron, up to 200 ingots/hour with no optimization techniques; not the maximum rate but sufficient for any early-game iron needs.

The village functions normally and produces iron at the same time, without needing to transport, enslave, or imprison villagers. The villagers are free to roam and work, and every night they make their way over the bridges into the cobblestone bunker to sleep. The building has 20 beds in two floors, with a stairway between the floors and a path around the beds.

Materials

The farm requires some basic tools: a bucket for both water and lava, one hopper, a large amount of torches, and several stone or iron pickaxes. Collecting all the required building materials is time consuming: primarily wood, wool, and cobblestone. It is best to collect your materials far away from the village. Trying to gather all the materials too near the village risks attracting zombies that can kill the villagers. You can estimate the number of fences you need by walking around the village perimeter; it is likely to require at least 4 stacks of fences (with a few fence gates) to make the village escape-proof and entry-proof, and 3 stacks of torches for adequate lighting.

Preparation

An L-shaped village works best, with the farm built in the crook of the "L" so that the beds are sufficiently near the villagers' job sites for the villagers to pathfind between their beds and their job sites. The biome should be reasonably flat, like plains or savanna.

First fence in the village and light it up, and add a few beds to encourage the villagers to breed while building the farm, which will take a while. Remove any high blocks near the outside of the fence, to prevent hostile mobs from entering the fenced-in area. Once the village is fenced in, you don't have to worry about villagers interfering with your work, which happens outside the fence in the crook of the "L". Proper lighting also prevents any hostile mobs from spawning in the village.

Preparation matters. All it takes is one zombie to get into the community bedroom and you end up with a village full of zombie villagers. Moving the beds into the sleeping bunker to start the farm is the last step!

Construction

Construction involves building the sleeping bunker with two floors (and a stairway between them) with 10 beds on each floor, at least one doorway to a bridge that rises up high enough to fit an iron golem underneath (the screenshot shows a bunker with two bridges for easier pathfinding), and making 7-8 blocks of spawning area all around the bunker. The lowest part of the spawning platform should be less than 6 blocks below the top floor of the bunker; starting level with the lowest floor would be sufficient. The rest is just water management and building channels to guide the iron golems into a killing area, which requires a block of lava, a hopper, and a collection chest.

Hostile mobs cannot spawn inside the fenced-in village, but they are free to wander into the farm from outside the fence (or even spawn on top of the sleeping bunker), and get swept into the mob grinder underground. This happens seldom, but you may find an occasional bone, arrow, rotten flesh, and other odd items in the collection chest.

Videos

Java Edition

1.19 Farm

Bedrock Edition

1.19 Farm

The Farm below can be further upgraded to a scale of your satisfaction.

Below is a variation of an Iron Farm with a Villager Trading Hall, a Villager Crop Farm, a Villager Breeder and a Villager Curer implemented.

See also

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