In this Factorio tutorial we show how to evenly balance the load on 3 belts.
Quite often you’ll have multiple belts of the same item, but it’s not evenly distributed among the belts they’re on. The design in this YouTube tutorial shows how to balance a load on 3 belts so that the outgoing 3 belts all have the same amount. This is useful when you need to load an even amount of items into multiple chests or train cars, or if you’re trying to optimize the operation of your factory.