balancer VS FactorioSimulation

Use a 2:3 balancer of which there are many examples but most people use Raynquist's Balancer Book. The blueprint book itself is for blue belts, upgrade/downgrade plan as necessary.

Use a balancer. There are many but the gold standard is Raynquist's Baancer Book for (most) of your any-to-any needs. Also, you need way more furnaces.

Blueprints can be found in my balancer book (blueprint, pictures), which has been updated.

Well, and then there's that balancer book. Because I can not do that in my own, no matter how long I stare at it.

Hey. After a chat with u/raynquist, I now know what I was doing wrong. To make a basic 10-5 balancer, simply connect 5 splitters to the input of a 5-5 balancer, with one belt from each splitter. To make a throughput unlimited 10-5, connect the output splitters from a 10-10 balancer to the input splitters of a 5-5 balancer in the same manner. The blueprints for both are below. Both use balancers available in Raynquist's Fall 2020 balancer book.

I recommend raynquist's balancer book: https://github.com/raynquist/balancer/blob/master/blueprints/balancer_book.txt

Also, raynquist's balancer book.

Unit tests sold separately

I hope this is somewhat understandable now. If you create your own Balancers and want to check if they do what you think you can use the Belt Balancer tool.