Built my first Naqium Ingot factory, pretty happy with it.
downscaled:
full pic
Naquitite processing is notoriously busy because it has to be mined outside the solar system and only stacks till ten. Most people do an intermediate processing at the mining site (which precludes the usage of production modules), but I chose to bring it in raw because I wanted to stress a high throughput system.
There's a few things I changed up. Generally for my 4 cargo wagon trains I funnel the four buffer chests into a single buffer chest to guarantee even consumption of the buffer chests, ex, my copper chests here:
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This has two problems:
1. You incur a UPS cost from the entry and exit of the buffer chest (which can be quite large for large chests)
2. You then have to distribute out of that chest to through your factory, which can be quite annoying in high consumption scenarios.
So I tried to ditch that funnel buffer and instead output it raw. This has the issue of imbalancing the chests which can either cause the factory to be underprovisioned or cause overshipping of trains, which can cause trains to be occupied longer than you want (which isn't a big deal in this situation because the only 1-4-1 trains I have coming from nauvis orbit to nauvis is for this purpose, but whatever).
To address that I did two things:
1. Used some fancy circuits to set my request amount (and even integrated in the LUA scripting mod:
Moon Logic )
2. Used some basic circuits to balance the chests.
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You can see the circuit logic for #1 here, basically it takes the most needed resource and multiplies it by 4 to request only when one chest needs it. The inserters to the left do some balancing of the chests. I generally have equivalent consumption of each chest, but it's imperfect.
After pulverising the naquitite ore, I'm using direct insertion to move them to the chemical factories, which is made easy with Bob's Inserters
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This is more UPS efficient than going building->belt->building, but requires a lot more effort.
Another thing I tried for the first time is used a sort of self-feeding inserter going into a loader
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This factory has a lot of byproducts, and in this case there are three byproducts that the system itself consumes *rolls eyes*. I think that mechanic is dumb and have historically solved it by creating an output that feeds back into a belt with some basic prioritization. This makes use of the fact that loaders will overfeed factories more than inserters, so it'll load up that byproduct and only use the inserter when it needs to.