A modern port of Smart Splitters, which was ported by EurypteriD from the original mod by ThaPear.
Smart splitters are dynamic-size belt splitters with built-in item routing. Place them side-by-side (same direction) to form a group, then use the native splitter filter GUI to assign items — no custom interface required.
I recommend using Lane Balancers by Quezler alongside this, so you can further balance the outputs as these get one-sided when the input and output belts are an even number.
How it works
- Grouped splitters share a common input and output pool
- Filtered splitters route their assigned item to their output belt
- Unfiltered splitters receive all remaining items evenly via round-robin distribution
- Input lane is preserved through to the output lane
- If no valid output exists for an item, it will feed through the input splitter (limitation).
- Input belt will stop if there is no valid output (filtered or unfiltered)
- Items can only be input to a smart splitter from a belt. Undergrounds etc. will try their best to reject placement.
- Quality is supported, both with item filters and without.
Three tiers
| Tier | Belt |
|---|---|
| Fast Smart Splitter | Fast belt |
| Express Smart Splitter | Express belt |
| Turbo Smart Splitter | Turbo belt (requires Space Age/Turbo Belts) |
Configuration
| Setting | Description | Default |
|---|---|---|
| Require dedicated research | Smart Splitters gated behind their own research, after their respective Logistics tech. Otherwise they are unlocked alongside splitters. | On |
| Max group size (fast) | Maximum number of fast smart splitters that can link together. | 3 |
| Max group size (express) | Maximum number of express smart splitters that can link together. | 5 |
| Max group size (turbo) | Maximum number of turbo smart splitters that can link together. | 7 |
| Overflow Enabled | Enables belt overflow of filtered inputs to go to unfiltered outputs. | On |
| Debug output | Print live group diagnostics to the console, configurable per player. | Off |
| Debug Routing | Overlays debug lines/dots in world to show inputs/outputs of smart splitters. | |
| Debug interval | How frequently debug info is printed. | 300 ticks |