Today was D&D main story night for my wife, so I'm back to my solo save, starting a new long-term factory for Iron Plates and Screws.
I had the thought to try out a setup with multiple floors, where you can look down on the first floor, from the second, and that morphed into this stacked setup. Really liking it, so far.
This also turned into a manifold strategy I haven't done before, with a manifold that is mixed between providers and consumers. I.E. the Iron Ingot line alternates between smelters adding to it, and constructors pulling off. The numbers work out, but we'll see if it ends up working the way I think it should.
Are you using filtered splitters for that?
No, there's only one item in play on that line, Iron Ingots.