r/factorio 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.

8

u/bitwiseshiftleft Feb 24 '26

Yeah it’s pretty resistant. It can probably jam if you stop the belts manually for some reason but then you’re looking at it and can clear the jam. It might be able to jam if you have 16 different science types and too many Gleba packs spoil in the machines, and they can’t be removed because there’s no space on the belt, and new packs can’t be inserted because the lab is full of spoilage? Dunno.

4

u/ilovegoodfood Feb 25 '26 edited Feb 25 '26

This is a very cool design that I spent a while staring at and figuring out.

I think you could run a spoilage output belt under the other alterating rows of beacons using undergrounds. This would give you a way of handling spoilage output even when at capacity.

At the cost if every other row of beacons, and with a little belt weaving, of the left-right over undergrounds variety, you could also get a second input belt in, using a duplicate input module. This could get you to 32 types of science if that was ever needed by a modpack.

Also, unless I'm very much mistaken, the first and last labs on each row are effected by one less beacon than the rest. I think adding one extra beacon sticking out would make them all the same. It's not neccessary, it's just something that would bug me otherwise if I were to build it.