The first one will also jam if items are only on one (wrong) side of the belt. Side loading an underground only lets through the product that hits the "open" half of it.


Sorry for bothering everyone — turns out it was just user error on my part.
Funny how easy it is to miss the obvious ...

There are no bugs visible here.


Thanks - your really swift :-)

Sorry - it was the wrong screenshot - here the right one and the BP
0eNqlmN1uozAQhd/F106F/zGvUlWrpPVWlhJAYFYbRbz7QrvatItNxuOrKJH5zjAz5yTkRk7nyfWDbwNpbsS/du1ImucbGf17ezyvn7XHiyMN+XkcwyEMx3bsuyEcTu4cyEyJb9/cb9KwmaauGfuzD8ENX07z ...

It’s strange—when my 4x4 splitter is facing left, everything works perfectly. But if I flip the design to face right, the belts get jammed and the flow stops. (see the red arrow) Can anyone knowledgeable explain why this happens? Is there a technical reason for this behavior, or a fix to make it ...

NineNine wrote: Sat Jul 12, 2025 11:00 pm There are many different "Factorio planners" out there. I think you're going to have to be a lot more specific as to what you're asking about.

I mean the Vatican of all planners:
https://mods.factorio.com/mod/factoryplanner

I want to set in a 50 x 50 grid a oil production with about 10 refineries which production should be consumed almost entirely by plastic, sulfur, sulfuric acic and lubricant - how to set up factorio planner correctly to find out the ideal ratio's?
Or even better would you kindly send me a save file ...

I’d like to keep all my buildings and entities, but remove all red and green wires so I can redo the wiring from scratch.
Is there an easy way to do this, maybe via the editor mode or some other trick?


I don't think there is an easy way, that would require some complicated command. There are ...

Hi everyone,
I’ve built a nice layout in my current map, but unfortunately I’ve made quite a mess with the red and green circuit wires.
I’d like to keep all my buildings and entities, but remove all red and green wires so I can redo the wiring from scratch.
Is there an easy way to do this, maybe via ...

I have filled up many boxes, e.g. the network with scrap when playing around in creative mod, editor and editor extensions
- how to empty the boxes all all together?


you can delete them in the editor with the decon planner, they would just disappear and their content.



Sorry, the content ...

I created a test game in Factorio Editor Modus for development purposes, which I have effectively ruined by mistakenly storing massive amounts of materials in network chests that I cannot delete.

To get rid of vast amounts of items in the editor, configure the map editor like this:

In the ...

[streamable][/streamable]

I need to transfer many game only in the bp library stored current game one to a new game.

So from one installation to another? Launch a save and copy the bps into Game blueprints, save the game and move it to the other installation.


Can I do this in a swap or must ...

Press B, or click the icon in the top right of the screen, to enter the Blueprint Library.
You can store blueprints in there. There are two tabs. One tab stores blueprints within the current save, the other tab is available across all saves.

If you need to transfer blueprints across different ...

I created a test game in Factorio Editor Modus for development purposes, which I have effectively ruined by mistakenly storing massive amounts of materials in network chests that I cannot delete. In this game, I saved several blueprints that are only assigned to this particular save.

What is the ...

boskid wrote: Mon Jun 30, 2025 11:23 am Settings -> Controls -> Miscellaneous -> Move blueprint (absolute grid|entities) (up|down|left|right)

Thank you indeed

With a blueprint in the cursor:

SHIFT + Arrow keys - adjusts the Grid position.
CONTROL + Arrow keys - adjusts the Absolute grid offset.

This arrow key klick doesn’t work on the Mac.
Where may I set this in the Factorio preferences?

What do you think about my idea of scrapping the system T value entirely and instead implementing a mechanism where, whenever a useful fuel cell is removed from the reactor, only one new fuel cell is inserted?

I tried the -750 with one reactor for several hours, but it didn’t work out for me at reliable as with four.
I don’t know why it is so, but that is life.


This looked interesting, I like to understand how systems behave. You have 4 cells (edit: 1 per logistic chest) "in battery" behind 4 ...

I tried the -750 with one reactor for several hours, but it didn’t work out for me at reliable as with four.
I don’t know why it is so, but that is life.


This looked interesting, I like to understand how systems behave. You have 4 cells (edit: 1 per logistic chest) "in battery" behind 4 ...

Now if you think of it, do you need to connect the 4 reactors and use - 3000 ? or could you just go with 1 reactor and use -750 ? seem to work the same to me.


I tried the -750 with one reactor for several hours, but it didn’t work out for me at reliable as with four.
I don’t know why it is so ...

Loewchen wrote: Tue Jun 24, 2025 8:52 pm Generally you should use a single reactors state for all inserters so they run synchronized, otherwise you lose the neighboring bonus and waste more fuel than you save.

Is this the case?
If I connect a wire to 4 reactors to check the temperature I will loose the neighboring bonus?

I have used this simple setup and it works - controlling T on all 4 reactors, no steam and inserting only 1 rod per cycle

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