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It was mostly inspired by topaz's and sparr's factories in this thread: https://forums.factorio.com/forum/vie ... f=8&t=2600
The purpose was not to have the most compact factory, but to use only a very limited set of tricks so the resulting factory can look normal and easy to build without always referring to the blueprint. It has a smaller footprint than sparr's version but it doesn't have steel furnaces built in. The dirtiest part of this factory is the inserter assembler but that's only 3 assemblers involved.

Note that for the circuit assemblers to actually work you need at least inserter stack size 2. You also need 37 iron furnaces, 7 steel furnaces, 3 oil plant + 4 chemical plant, 25 copper furnaces and some coal to feed this beast. The oil part needs some tweaking to maximize production, or you can just add more plants.

Interesting iteration of the topaz/sparr factories. I'm definitely all about the minimal footprint, minimal "tricks" designs. There's something nice about clean conveyor lines.

I think the petrochem input for the battery could probably be extracted or moved to an edge to make the whole thing a little neater, but I still like the overall layout.

very nice one! It's a bit over the top for practical use, but that doesn't really matter if you build it just for the beauty of the design.

one small suggestion: use a 1 tile tunnel in the iron/copper belt next to your smart inserter assembly to output them directly onto the belt. if you're not low on supply, the long handed inserters can still grab the copper from the tunnel entry and exit.