Blueprint Primer - exact item requests


Prime a furnace, assembler or chest with the exact ingredients and fuel amounts its recipe needs, down to a partial stack. Chests also take exact item counts. Drag over a row, ghost or built, to prime every machine of one kind, or stamp primed blueprints. Boilers, burner drills and locomotives get just the fuel. Construction robots deliver the item request.

Utilities
12 hours ago
1.1 - 2.1
138
Logistic network Manufacturing Blueprints

i Chests

a month ago

I love this feature. I've been doing it the hard way for quite a while and this makes it so much easier.

I also, doing it the hard way, like to 'prime' a machine with a connected chest. for example, if I want a foundry to start by making 4 foundries I have to set it with 200 carbide. Stack size allows only 50. Make a chest next to it with ghosts for the full 200, along with the rest needed for 4 foundries, and it's all done.

Can this ability, 'priming' chests, be added to the mod.

Also, it seems to work fine in 2.1 w/o changes. I haven't tried anything with the fuel_category/fuel_categories change, however.

a month ago

Hey Chindraba, This is a good idea. Thanks for feedback. I'll work on it. -bits

a month ago

All right, I have pushed a new update. This issue should be fixed. I have also released it to 2.1.

Version: 0.3.4
Date: 2026-09-27
Features:
- Chests can be primed. Point the tool at a wooden, iron or steel chest, ghost or built, and its window opens with two modes: Recipe, which works exactly like a machine's, and Items, which lists individual items and counts instead. A chest feeding a machine through an inserter opens straight onto that machine's recipe.
- Items mode: add a row for each item you want, and set it with Half, Max, a slots slider, or an exact count, up to what the chest holds beside the other rows.
Changes:
- Dragging the primer tool now also lights up chests, and a drag over a row of chests primes them all, the same way a row of machines already worked. A drag centred on a chest skips other chests, not nearby machines, and the other way round.
- Clicking a logistic chest, or hovering one with ALT + P, now explains that logistic chests can't be primed, instead of doing nothing.
Bugfixes:
- A group's area Blueprint now also carries other already-primed machines and chests standing in the dragged area, not only the group itself; their requests were silently dropped before.
- Fixed a fixed-recipe read that returns a different type on Factorio 2.1, ahead of a future 2.1 release.

a month ago
(updated a month ago)

Excellent work. Great tool.
Storage chest can be primed in blueprints and when they are ghosts. Something I've done when doing it the 'hard way'. I ghost build a storage chest in remote view out of roboport range and prime in the ghost items. Then I either make a print for it, or copy it and paste it inside roboport range. It gets built and loaded according to the ghosts placed in it. I haven't tried any of the other logistic chests.
The nice thing about primed storage chests is that the set filter is ignored when placing the ghosted stuff. I can have a storage chest set to stone, and prime it with a bit of coal and jump-start a smelter stack before the bots get the coal belt built.
When I mix contents like that I prefer to put the off-filter stuff in the last slots just so I can see them get filled, and then used.

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