Filter Stack +combinator

caribou666 · Post by **caribou666** » Thu May 07, 2020 11:10 am

Hi,

Fist of all sorry for my english, i'm not fluent.

I would like to transfer items from one vault to another using filters stacks + combinators for ease. I'm more or less able to do this, however if an item is missing, the transfer will be interrupted. That makes sense. I would like to change that logic and make the arm transfer only existing stuff.
Well I can't do it, maybe can you help me ?

Thanks

DaveMcW · Post by **DaveMcW** » Thu May 07, 2020 10:50 pm

This is a hard problem. Why can't you manually set each filter inserter to a different item?

Here is a solution. The steps are:

1. Set every item in the input chest to exactly 1 million.
2. Add the 1 million items to the constant combinator.
3. Filter out anything less than 1 million.
4. Subtract 1 million. Now the constant combinator is filtered by items in the input chest.

: filter-transfer.jpg (185.54 KiB) Viewed 3127 times

SyncViews · Post by **SyncViews** » Fri May 08, 2020 12:54 am

Alternatively on your needs, it might be an option to use the basic filter inserter as each can take 5 filters rather than just one.

: t.png (127.51 KiB) Viewed 3114 times

Otherwise the large offset trick is useful in ways such as this since "add" by joining outputs is the only form of "each = each op each" available.

Also if you are open to playing with mods, the stack size and number of filter slots can be changed.

Khagan · Post by **Khagan** » Fri May 08, 2020 1:46 am

I'd do this by digitising. Emit 1 for each channel with demand and 1 for each channel with supply, and send to the inserter only those channels with a total of 2.

(You can reduce the combinator count by 1 if you use negative numbers to represent demand in the constant combinator.)

Optera · Post by **Optera** » Fri May 08, 2020 6:10 am

Easily done using the whitelist filter I showcased here: viewtopic.php?p=447487#p447487

: 2020-05-08 080912.png (83.96 KiB) Viewed 3086 times

Usage:
Set whatever the filter stack inserter should transfer with count 1 in the constant combinator.

caribou666 · Post by **caribou666** » Fri May 08, 2020 7:17 am

Wow, i'm impressed by your responses !
I'm going to test all of that today (thanks to the quarantine) and i'll show you how i use it

Thanks guys !

caribou666 · Post by **caribou666** » Sun May 10, 2020 9:33 am

This is my first try for a 100SPM full integrated module with merged chest + LTN + Khagan solution. It's compact and pretty ugly,but it's work well. Next step is a 6 lanes rail network.

Thanks again for your help

Optera · Post by **Optera** » Sun May 10, 2020 10:30 am

Using wide chest like that is so dirty.

caribou666 · Post by **caribou666** » Sun May 10, 2020 10:55 am

1st version was a 2x600 chests long merged on 1 line, with smelting included

Multiplied by 18, with 4 lanes rail network.
Worked well ahahahaha

Next setp is 10kSPM with 100 modules

mmmPI · Post by **mmmPI** » Tue May 12, 2020 7:29 am

caribou666 wrote: Sun May 10, 2020 9:33 am picture

those belts have a problem, lemme zoom in , oh wait, those aren't belts.

Only rationnal explanation is that there are hidden logistic bots inside the boxes that does all the magic

caribou666 · Post by **caribou666** » Tue May 12, 2020 6:06 pm

Mod : https://mods.factorio.com/mod/WideChests

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