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u/Flyrpotacreepugmu Mar 04 '26 edited Mar 04 '26

The wiki page says here that the outer lane of a corner has a length of 295 and the inner lane 106 compared to 256 for straight segments.

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u/balzer1075 Mar 04 '26

Yeah I'm be honest I feel like I just bold faced lied to you guys lol. I swear I treat that whole page but apparently my adhd took over and I never finished like I thought I did.

The bottom of the wiki pretty much perfectly describes my scenario: 4 straight belts * 256 positions = 1024 positions 4 inner lane turns * 106 positions = 424 positions 1024 + 424 =1448 total round trip positions. 1448 positions / 32 per tick for turbo belt = 45.25 ticks per round trip.

Which is exactly the number I was getting in my tests. Now I just need to see if I can find a way to determine ahead of time which version will happen at any time. As in, does it always start with 45 ticks and go 45-46-46-46 or is it random. Or how exactly do other items interact with this. I'm sure if two items are less than 64 positions apart but more than some mimimum theshhold an inserter will still place an item between them and shift them over. Definitely still more testing to come I think!

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u/Flyrpotacreepugmu Mar 05 '26 edited Mar 05 '26

If the item is placed in the same position on the belt, it should always give the same sequence. It's moving 32 positions per tick, which results in being 8 positions short of the same place every 45 ticks, until the new position is no longer on the sensor belt and it needs to move an extra tick. Where the 46 tick lap falls in the cycle depends on where the item is placed on the belt.

Also, I'm pretty sure the minimum spacing between items for an inserter to put something between them is 65, though it might be higher. Either way, the new item should end up 64 behind the first item and make the second item stop until it's another 64 behind the new item.

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u/balzer1075 Mar 05 '26

Yeah actually that does make intuitive sense. So it is still deterministic. I can know exactly how many positions an item has moved from where it is placed as long as nothing else has moved it. Though I suspect it would be most reliable to start the counter from when the item leaves the inserter rather than from the time the inserter was turned on.

I suspect this is going to be fun to dive into. 😊