Did the space expansion introduce new combinator to enable this wonderful construction? I do not recall anything like this existing before the expansion.

After awhile the build inventory will look something like this:

Is the train just for illustrative purposes?

https://factoriobin.com/post/rf29ip version 5

• Will stop when main target is finished
• Will clear out build queue when main target is finished, and target recipe changed
• Made some of the logic cleaner
• Updated Warning Sign to be just one sign and look for more missing materials.

I love seeing all the different approaches to this. My solution was to break all the recipes up into dependency tiers (coils & gears T1, circuits T2, inserters T3 etc.), which would then let me use the sorting on the advanced combinator to sort the execution. I guess it kinda works how the player crafting queue works:

counter cell holding an index
If logi_requests[index] is not craftable: increment index (counter resets at logi_requests.len)
If we "lock on" to something craftable we save it to mem
Calculate the total resources required (raw and intermediates) using lookup combinators and have that all on a line
Raws get requested, intermediates get "oned out" by a decider and then multiplied by the tier values.
That then gets picked by an advanced combinator which is sorting it by low to high and sent to the assembler.
It then makes as many as needed before moving onto the next thing until eventually it satisfies the saved logi request
It then resets the counter and everything starts again.

I liked that it was resilient to constantly changing network requests and made efficient use of the logi bots with bulk requests

This is very different then my previous ship designs, which had a dedicated combinator for each item I wanted to build - With that approach you manually had to specify the entire build dependency tree, and set build limits. https://hackertalks.com/post/4906636

The circuit here is a bit bigger, but I think I can make it smaller, but its far more flexible and dynamic.

Disgusting, I love it

I've got something similar except the number of items I want to produce is set by the constant combinator. The new logistics groups are awesome for this because I can have the combinator synced with things I want in my inventory.

I also have the radar network set up where trains report the items they have and stations request trains with items they want so I can request more materials be delivered to my omni-assembler when I need them.

The downside I've been wanting to fix is the need to specify all of the intermediates that are needed. That's not too hard to fix, of course, just attempt to make ingredients that are missing (like you're doing).

I've also been wanting to try and change from using a constant combinator to using the requests on the logistics network. So then all you'd have to do to get something added to the recipe list is start requesting it.

Is there a way to get a decider to output a negative constant value?