Superseded by Belt Balancer 2. (Fork with performance improvement) Adds Balancer Parts, that can be put together, to balance all adjusting lanes.
Mods introducing new content into the game.
Augmented or new ways of transporting materials - belts, inserters, pipes!
Path belt-balancer/graphics/entities/balancer.png does not match any enabled mod.
Sorry, I hadn't actually checked that the mod would run when I uploaded it (I really should have). The new release should fix it.