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Introducing GAFFE: Gravity-Assisted Fish Farm (Expandable)


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Inspired by this post.

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The picture above has four units; more can be added to the right.

Lime (egg shell) yield: 1.8 kg per cycle per unit.

Efficiency: 1 kg algae per 2 kg egg shell.

Dupe labor requirements: none.

Electric overlay:

Spoiler

Nothing special here. Everything is powered except for doors. Smart storage and pumps are the only parts that draw power continuously.

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Liquid overlay:

Spoiler

Valves are 2100 g/s. Only the rightmost liquid vent is needed normally. The other two vents will allow this room to function normally if there are 2+ gases in there (you really don't want that to happen, though).

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Shipping overlay:

Spoiler

Priorities are in red. P8's can be any priority greater than 2. I don't know if sweepers deliver to higher priority loaders first. If they don't, the loaders in the bottom chamber can have any priority.

Egg dropper critter sensors are set to zero.

Smart storage is set to 8 kg once the farm is fully operational and 12 or 16 kg while it's powering up.

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Automation overlay:

Spoiler

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Misc. stuff

  • Fish feeders are set to 1 kg algae.
  • Water temperature must be below 25C, otherwise gulp fish will start dying. Make sure gas outside doesn't become too warm. Deploy wheezeworts as needed or use another cooling solution of your choice.
  • The tiles inside may be normal or insulated. The outer shell tiles must be non-insulated because of the above.
  • A shipping setup that removes egg shells, meat and polluted dirt from the bottom chamber will have to be added in survival.
  • Bootstrapping this build turned out to be an unexpected PITA even in debug mode. In theory, you can put a single pacu egg  (tame only!) in one of the smart storage containers and it should be enough as long as it starts at near-zero incubation... except it will take for-freakin'-ever to reach the steady state. I've yet to find a reliable way to speed up this process. Once fully operational, the farm will function without any player input.
  • A packet of carbon dioxide or another heavy gas in the feeding chamber can easily break this build. For best results, make sure your dupes wear exosuits before building this.
6 minutes ago, beowulf2010 said:

Yeah. Looks interesting and I think I see the basic concept. But without automation, plumbing and conveyor overlays at a minimum, I'm not sure on a few things. 

A save file would be nice too. 

Will post the overlays later on. In the meantime... what things are you unsure about?

1 minute ago, M.C. said:

Will post the overlays later on. In the meantime... what things are you unsure about?

Just generic "what goes where" type stuff. It looks like eggs come in at the top and 2 get put in the smart storage. Then at some unknown signal (water clock?) the middle autosweeper turns on and drops an egg. Not sure what triggers the egg getting dropped into the small 2x1 room, nor what determines when to release the fed fish into the main pools. 

Also, where do the eggs go when all 4 pictured smart storages are full? 

Stuff like that. Of course I'm also at work so I can't even try to build it at this time. 

All of which I could puzzle out on my own through overlays. :D

4 minutes ago, beowulf2010 said:

Just generic "what goes where" type stuff. It looks like eggs come in at the top and 2 get put in the smart storage. Then at some unknown signal (water clock?) the middle autosweeper turns on and drops an egg. Not sure what triggers the egg getting dropped into the small 2x1 room, nor what determines when to release the fed fish into the main pools. 

Also, where do the eggs go when all 4 pictured smart storages are full? 

Stuff like that. Of course I'm also at work so I can't even try to build it at this time. 

All of which I could puzzle out on my own through overlays. :D

The eggs are collected from the not-quite-death-by-hunger chamber (bottom) and the feeding room. They are routed to the smart storage on the top. Each smart storage is a buffer that holds at most one egg to make sure there are always eggs available for dropping. Excess eggs leave via the conveyor rail in the upper right corner.

The duty cycle is controlled by the 2000 second clock (10 buffer gates, upper left). I could build a water clock for this but this was simpler. Egg dropper and doors are controlled by the filter gates on the left. Feeding is controlled by the 2x600 second clock (6 buffer gates, lower left, mostly obscured).

1 minute ago, Grimgaw said:

I'm still unclear about what your build actually does. Is the amount of fish in bottom pools increasing? 

It produces egg shells, meat and eggs. I'll leave it up to you to figure out how it does all that.

What use are the critter sensors for?  The dropper bypasses these, if the door below the sensor was removed, this would make more sense.  As it stands, you may as well just get rid of the sensor and logical AND gate.

Also, what use are the fish feeders, they seem to do nothing, after a 100 cycles, a single fish has yet to use any of them. I set the valves to 2100g/s, this is clearly not enough liquid.  I have tried 4000 g/s and this still isn't enough.  My atmosphere is only O2.

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