>>717934838
Here's a pitch for my starter base. It's pretty scuffed and I won't pretend that it's efficient since my only concern was getting off of Nauvis and getting to Vulcanus since it's way easier to mass-produce stuff there, but in this form it should be easy enough to grasp the general concept you're aiming for.

>Feed in Copper and Iron and put them on a central bus
If you're not playing with Space Age then you might want to also put Stone and Coal on your central belt. I didn't because military and production science (black and purple) are way easier to make on Vulcanus, and I don't mind shipping them to Nauvis in batches of 100,000.
>Dedicate a couple of lines to Steel and Copper Wires, they'll come up later
>Fork 1 for Red Science since those require very basic materials
>Fork 2 for Green Circuits, throw those on the central bus
>Fork 3 for Belts, Inserters, and Green Science. This one was extremely scuffed but it's fine since the Green Circuits have their own dedicated space and go on the central bus. Instead of doing it like a retard like I did, I would recommend having a dedicated space for belts and circuits. Just route the yellow ones to green science (they do not need to go on the central bus)
>Fork 4 for Red Circuits.
Side note for this but you'll need to handle making Sulfur and Plastic, throw the Plastic onto the central bus since it comes up later for Low Density Structure production. As for the Sulfur, the only two things they're really used for is Red Circuits and the production of Sulfuric Acid, so you can leave those off of the central bus if you want (but you'll need to route a sulfuric acid pipe for blue circuits and batteries later)

So on and so forth

The basic principle is
>Make a central line for your core resources
>Add and remove items from it on an as-needed basis
>Fork off materials for production of certain goods