I understand that .16 is going to fix a lot of belt-related behavior, and my hope is you'll say the same here. However, I wanted to share this with you to see if it needs to be specifically addressed prior to .16.
TL;DR An inserter can insert items onto a fully-loaded underground belt, but only in one direction.
1. See the above image for what I did. It's a belt array I'm sure you've seen a million times by now. In it, I am only producing red belt (so I'm pulling gears off the interior lanes B and C only since they are staying full).
2. The red arrow up top is highlighting an inserter working as intended, where it cannot load onto Lane B because it is full. Interestingly, the green arrow is highlighting an inserter that IS operating, essentially injecting items onto an already-full Lane C.
3. The inserter marked by the green arrow here should NOT be able to inject items onto Lane C in its current state.
As I said, I hope you say this will be resolved in .16. I find it interesting, though, that only inserters in that particular direction exhibit this behavior.
Thanks for your time!
[15.33] Inserter Putting Items on Full Belt at Underground
Re: [15.33] Inserter Putting Items on Full Belt at Underground
That sounds like a feature actually.
Turns out also if you have an underground belt hood that you put in front of a miner, it will prioritize the miner into the belt instead of the belt behind it; useful to fill half spaces between things and make sure belt is fully compressed...
Sounds more like the top inserter is the one with the bug
but probably the bottom belt isn't actually moving as much?
Turns out also if you have an underground belt hood that you put in front of a miner, it will prioritize the miner into the belt instead of the belt behind it; useful to fill half spaces between things and make sure belt is fully compressed...
Sounds more like the top inserter is the one with the bug

Re: [15.33] Inserter Putting Items on Full Belt at Underground
Interesting thought. No the belts are getting pulled evenly, but there is one more set of assemblers making gears off screen to the left. I didn't think it necessary to show them, though.
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Re: [15.33] Inserter Putting Items on Full Belt at Underground
agreed! i use this feature(?)/bug(?) in my builds.d3x0r wrote:That sounds like a feature actually.
Turns out also if you have an underground belt hood that you put in front of a miner, it will prioritize the miner into the belt instead of the belt behind it; useful to fill half spaces between things and make sure belt is fully compressed...
Sounds more like the top inserter is the one with the bugbut probably the bottom belt isn't actually moving as much?
looks like we get to keep it.

kovarex wrote:I gave this a thought, and there is kind of deep reason why it is behaving like this, and by changing it, other things would break. So I'm keeping it as it is, as it is questionable whether it is even a bug.