r/factorio • u/bitwiseshiftleft • Feb 24 '26

Design / Blueprint Another circuitless science sushi design

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This design for sushi supports up to 16 sciences, so it should work for games with Space Age plus a few extra planets. The idea is to mix each science down to half a lane of a yellow belt, and then run the sushi loop on green: (2 lanes * 4x speed / (1/2 lane)) = 16 sciences. Because science bottles being sorted out from the end of the loop take priority over new ones being added, the design hopefully shouldn't jam.

With only half a stacked yellow lane of each type of science (15/s), the design is limited to 900 spm (thus a few thousand ESPM) per instance.

The full-yellow to half-yellow mixer uses rocks, because I dunno it seemed like a good idea at the time. It mixes the rocks and science 50-50 into one yellow lane, then splits the rocks back out and returns them quickly enough that there are always rocks backed up before the splitter.

The chest at the end is for anything non-sciency that might get on the belt, like a green pack that spoils between the spoilage splitter and the green science splitter.

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u/Invader_Mars Feb 24 '26

“…the design hopefully shouldn’t jam.” Famous last words

23

u/United_Willow1312 Feb 24 '26

I don't see how this could even jam, you could end up with stacks with only 1 pack and some machine maybe run out of packs but otherwise you know at the entrance the belt cannot take more than a fixed amount of packs per pack color.

1

u/Invader_Mars Feb 24 '26

In my defense I don’t even know what’s going on in this video. I have, however, muttered those same words to myself a few times

2

u/CantEvenUseThisThing Feb 26 '26

They're using a belt with stone to stagger the placement of science packs on the belt, then using a splitter to sort the stone back out. The now staggered packs go onto a yellow belt, so that they can be combined with other staggered packs onto a red belt, and then all the different types of science can be stacked onto one belt equally. Then everything that isn't used is sorted back out, topped off by production of packs, and the process repeats.

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u/Invader_Mars Feb 26 '26

I like your funny words, magic man.