Sides of the Brass Tunnel can be Filtered to only allow certain items to pass. If multiple outputs are available, items will be treated according to the tunnel's setting, being split by default.
Settings
Using the Wrench, the treatment of item distribution can be changed.
Setting
Function
Split
Items will be split amongst available outputs.
Forced Split
Only split items when all outputs are available.
Round Robin
Place inputs on available outputs in a round robin fashion.
Forced Round Robin
Wait for unavailable outputs in a round robin sequence to become available.
Prefer Nearest
Only move the item to next nearest tunnel when the nearest output is unavailable.
Randomize
Output is randomized.
Synchronize Inputs
Output all at once, stalling when items are missing. Synchronized tunnels may not draw from adjacent tunnels, so it may be necessary to have splitting tunnels placed before them.