Drecko Farm

There are 2 types of Drecko in the game, the wool of which gives different resources when sheared:
 * 1) Drecko - gives 2 kg of reed fibers, every 7.7 cycles
 * 2) Glossy Drecko - gives 150 kg of plastic every 3 cycles

We will be interested in the Glossy Drecko.

Сharacteristics of the Drecko

 * Lifetime - 150 cycles.
 * Comfortable temperature: 35...90ºC Drecko, 25...60ºC Glossy Drecko
 * Nutrition - Mealwood (increases the chance of plastic Drekkon), Balm Lily, Pincha Pepper
 * Breeding rate - 1% wild, 10% tame
 * Minimum room size is 12 cells/animal
 * Produces phosphorite: 500% (regular) and 300% (Glossy) of eaten
 * Birth temperature: 62.5ºC (regular) and 42.5ºC (Glossy)
 * Initial calories are sufficient for 37 cycles
 * Wool grows only in a hydrogen atmosphere.

In order to keep Glossy Drecko (hereafter Drecko  for short), it is necessary to provide them with access to food (a Mealwood that needs oxygen, polluted oxygen or carbon dioxide to grow), and a hydrogen atmosphere. And the more time he spends in hydrogen, the better (faster wool will grow).

Dupes won't be able to do the job in hydrogen or CO2, and the oxygen atmosphere will emit CO2, small portions of which are not enough to grow a muke. Therefore, 99.9% of the schemes are based on the farm being insulated with a airlock and the Drecko being cared for in an atmo suit.

I want to introduce you to a Drecko farm that doesn't need either insulation or atmo suits.

General View


The farm consists of 2 rooms:
 * The left one is 96 cells square, with oxygen at the bottom, a Mealwood grower and a Grooming and Shearing Station built, and hydrogen at the top. It is designed to hold 8 Drecko.
 * The right one is where all the excess Glossy Drecko eggs are removed. The shearing station and incubator are also located there. The Drecko are kept there without food.

The circuit is in no way isolated from the outside atmosphere of the base and this usually causes problems. When the ambient oxygen pressure drops, hydrogen begins to sink down, reaches the Farm Tile, and stops the growth of the Mealwood. Avoiding this is helped by Mechanized Airlock located at the top. When external pressure drops, they open and excess hydrogen goes up, when pressure rises, they close lowering hydrogen down.

Automatics, conveyors


The left Auto-Sweeper and Loader take everything but the dirt out of the circuit. The dirt is needed for the growth of the flour Mealwood and is fed through the upper conveyor.

The conveyor sensor and controller take the Glossy Drecko eggs into the right room. Everything else: phosphorite, shells, meat, and regular Drecko eggs are taken out of the circuit. Eggs of regular Drecko can be placed in the drowning room or in the farm of regular Drecko or in the kitchen, to the egg cracker.

The Critter Drop-Off is set up for 8 Drecko.

Gases
The Atmo sensor opens the doors when the pressure drops below 1500g, through a Filter Gate (10 seconds), to prevent false triggering from accidental gases.

The unit, to the left of the Critter Drop-Off, blocks the dupes access to the flour farm, so that they don't waste their time tending to the flour farm and, importantly, they don't breathe out the CO2 there. All of the CO2 from the dupes goes down through the Airflow Tile.

There is a Deodorizer in front of the farm entrance to keep the polluted oxygen out of the farm. The rest of the gases are fine with the farm - they are heavier than both oxygen and CO2, and will go down if they happen to get on the farm.

An improved version
One row of doors is not able to compensate for large pressure fluctuations around the circuit, so it makes sense to place 2...4 rows of doors, with sensors adjusted each to its own level. This can be, for example, settings below 400, 800, 1600 g. When the pressure fluctuates too much even such a measure will not save, so it is worth to get a pipe with oxygen on the farm. In any case, the dupes will consume oxygen and must be replenished.

It also makes sense to place several incubators. So you will increase the speed of hatching eggs (there will be a lot of them) and increase the skill of cattle breeding for dupes.

At the top of the scheme placed a large number of Pneumatic doors (they are cheaper than mesh tiles). This increases the time the Drecko spend in hydrogen.

At the bottom left of the circuit is an Pixel Pack with 4 animal sensors, each set to a different threshold: above 5, 6, 7, 8. It is not particularly necessary, but it will allow you to see that something has gone wrong.

The scheme provides slightly better plastic production, at the cost of keeping the Drecko in hydrogen a little longer.

You can also increase the size of the flour farm if you need the Drecko specifically to produce phosphorite.

Or you can do the opposite, reduce the flour farm, to 2 cells. This would turn the left farm into a half-starved farm, reduce dirt consumption, and even slightly increase plastic production by allowing the Dreсkons to spend even less time in oxygen.

And of course you should be concerned about keeping optimal temperature for flour production at 10...30ºC.

Atmo suit option
Everything is the same, but the pressure compensation circuit is removed. The circuit is airtight due to the 2-drop water airlock, and the dupes enter it in the atmo suits. If you don't mind the atmosuits, you can use this very compact and productive scheme.

Some points from the improved version (indicator, farm expansion, additional incubators, cooling) can be applied here as well.

An improved version


Added 4 incubators to this chart on top (that many can be covered by 1 Auto-sweeper). All plastic Drecko eggs are transferred there.

After hatching, the dupes will retrieve the Drecklet (cub) from the incubator, and release it with the Critter drop-off. Two doors and two Weight plates are needed for the animal to fall into the lower pen. It is not possible to place the incubators and the Critter drop-off on the bottom floor, next to the shearing station. After 20 animals, the Critter drop-off will stop working.

The egg will continue to hatch even after the incubator is turned off, just turn them on for a short time, just long enough for the dupes to have time to sing the egg a lullaby. This is what timers are for. So that the incubators don't switch on at the same time and thus don't overload the wires, and also so that the dupes has time to serve all the eggs one by one, 2 timers are used.

This measure saves a lot of energy. Timer settings: green period - 15%, red - 40% and 60% (the values may be any, as long as they are not during the rest of the dupes, and not at the same time). The same economy principle should be applied to any number of incubators.

Productivity
In 1 cycle the farm produces about:
 * tons of plastic - the first scheme, tons - the second,  ton - the third,  tons - the fourth
 * kg shells
 * kg of phosphorus
 * kcal of meat

Farms with atmo suits turned out to be more productive in terms of plastic. But nevertheless, the scheme without the atmosuits can be repeated, since it has its own advantages.

Blueprints
Drecko

Drecko-maxi

Drecko-mini

Drecko (2 floors)