I remember this issue from a long time ago.
If i remember correctly, splitters split incoming items by item. so if only 1 sort of item comes in, the first one is placed on the left and the second one the right. With a compressed belt, the 2 lanes of a belt come at the splitter at the same time, they are split like you see in your picture.
However, when both lanes of a belt contain different items, the first boiler is placed on the left, and the first furnace on the right.
the second boiler however, even though it's the third item, is placed on the right, becuase the previous boiler went to the left.
If you take this explanation it also holds for the furnaces.
The first furnace, of the left lane, is moved to the left.
The second furnace, of the right lane, is moved to the right.
The third furnace, left lane again, is moved to the left.
since items can't swap lanes on a belt, two straight lines are produced and this will only defer when one lane backs-up for a second or the input changes.
This always holds, also for uncompressed belts, as long as the incomming items are switched on lane:
- splitter.jpg (61.99 KiB) Viewed 14204 times
Greetings,
Racusthor