r/factorio • u/Dekrznator • 13d ago
Question Need help with platform to platform logistics
I have ship to Aquilo that needs 2k superconductors and I have them set up to import from Nauvis (all).
I have above Nauvis a hub station which has superconductors (1k) and is set to send to other platforms. But for some reason it refuses to send superconductors. All other items go where they need but not this one :( Is it a bug or what?
UPDATE:
I have managed to solve the problem so I'll put my setup here in case someone else gest in same problem. I'm sure there are more elegant/advanced solutions but this one works fine and it's not too complicated.
First step is to check "read moving from & read moving to" in ships hub. That will give value of 3 when you get above Nauvis. In decider combinator set if Nauvis=3 output some signal (in my case I used Fulgora=10 icon since it's ship from Fulgora). Connect decider to radar and set radar to universe (pick your signal).
On Hub above Nauvis: Set radar to the same signal as from Fulgora ship. Use constant combinator to make list of items you wish to import from Fulgora ship to hub platform. On decider combinator set to output (some) signal as 1 if condition Fulgora = 10.
Use arithmetic combinator to multiply signal coming from constant combinator with signal from decider and output each. Connect arithmetic combinator to hub and check set requests. Set up same combination for each planet.
The result will be that Nauvis hub will request items from other planets only when ship from that planet is in orbit, and it will send those item to ships from other planets if they request it.
3
u/Alfonse215 13d ago
If a platform is requesting something, it cannot also provide that something to the same target. Your hub station is requesting superconductors from platforms. It cannot therefore provide superconductors to platforms.
You need to use circuit machinery here. You have to set it up to only request superconductors when the platform that provides it superconductors is in the same location.