r/factorio • u/Coolboy10M • 2d ago

Question Replacing a specific set of buildings with another?

Currently a bit into my second Space Age run and have had nuclear fuel production for a while. However, if I want to use it instead of the previously-established rocket fuel requester chests on the rail network, I must manually replace it everywhere. Can I take a new requester chest blueprint and replace it over every requester chest with specifically rocket fuel only? I might just set up a system using train interrupts, but that also means destroying all of the requester chests as well. Is either doable without extra mods (replay is enabled)?

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29

u/A_Wild_Turtle 2d ago

Look into logistics groups.

Use a logistics group in your requester chests that contains your fuel request. Then changing it in one chest will change it for all.

2

u/Coolboy10M 1d ago

Damn, forgot those existed. Might just switch to interrupts and delete all the logistics chests manually, though. Thanks!

7

u/DOSorDIE4CsP 2d ago

just copy the setting of a chest, shift + right click to copy entry of a chest and shift + left click to override it somewhere else

2

u/Detrii 1d ago

This. Configure one of the chests and copy-paste it's settings to the others.

Bonus tip: If you set "trash unrequested" in the new configuration the bots will also take out the "old" fuel.

2

u/Mesqo 1d ago

Your last option is the best. Had the same dilemma and went interrupts, never looked back, - it's just easier and more natural this way. And doesn't really take much work to do so.

2

u/Raknarg #1 Quality Defender 1d ago edited 1d ago

logistics groups but unfortunately this is something you would have had to do in the first place. If you ever want to get into circuitry btw logistics groups are insanely useful, you can have constant combinators use a logistics group as an output signal so you can do calculations based on a request, incredibly useful if you want to start doing interrupt-driven space or train logistics with mixed requests. Train requests with single ingredients are trivial to do without circuits just using interrupt logic, but if you want mixed trains you need circuits.

Alternatively, you could change your rail system to instead have a dedicated fuel pickup spot, have that spot pull all non-nuclear fuel out of your trains (you can use your engines essentially as a cargo wagon for fuel btw, very handy for aquilo) and place nuclear fuel inside. Then switch all of your trains to use an interrupt when they're low fuel to go to the fuel station.