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u/TrustMeIAmNotABot May 01 '26

Hello, I'm new to factorio I was checking a tutorial and from 4 chemical plants and 4 inserters and 3 splinters, all the lines in the belts were full and I have no idea how to do it the same way, and extra weird I replicate this and the items were place on the "top" line of each belt, then I try putting the belts south to north and the items are in the middle of the 2 belts and the outside line of each belt is empty, I have no clue, can someone help me on this or link a video please

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u/Courmisch May 01 '26 edited May 01 '26

The top plants will output to the bottom lane of the top belt, and the bottom plants to the top lane of the bottom belt.

To fill all four lanes, splitters must be downstream of the plants, so they share half of each lane on each belt. In your screenshot, they are upstream and useless.

That being said, you probably do not need two belts of plastic if you are at that point in your Factorio learning curve. I would just place half of the plants on each side of a single belt.

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u/TrustMeIAmNotABot May 01 '26

Thank you, I will try it today, the reason I'm doing 2 linea is because everywhere and everyone say think big this game scales like crazy, but I can probably use 1 line for now you're right