Most simple design I could find.
Perfectly splits and merges 3 input belts to 4 output belts as long as the input amount is roughly balanced.

Originally shared on the public FactorioPrints / Factorio School archive (factorioprints.com · factorio.school). Authorship preserved from the public catalog.
Most simple design I could find.
Perfectly splits and merges 3 input belts to 4 output belts as long as the input amount is roughly balanced.