Factorio Forums

Posted: **Wed Mar 14, 2018 6:28 pm**

Hello

Haven't play factorio for months, I saw some weird behavior from my train unloading balancer.

I use 12 belts that get merged two by two to form 6 lane that get balanced into only 3. Because 3 is slower than 6, the 6 input belt are use only half so back up. That way balancer have 6 full belt coming in. However the output have gap.

The same balancer fed with 6 full belt using loader don't create gap.

Observation : To resume, two same balancer, 6 input, 3 output. 1 fed by inserter, the other using loader. The inserter fed one have gap in output belts, the other don't.

Expected behavior : Same behavior in two cases (gap or no gap)

: Having show-transport-line-gap debug checked to see gaps.; bug_balancer.jpg (251.37 KiB) Viewed 3532 times

Red and yellow belts don't show that behavior (having gap).

Here a save with both setup for testing that reproduce the issue.

_bug_inserter_gap.zip: (2.55 MiB) Downloaded 131 times

Posted: **Thu Mar 15, 2018 1:03 pm**

The problem is, that generally when there is a loop in the belt system, it can't properly set order of updates in a way, that output updates before input, so full compression is not possible.
In your example, when I removed the loop and related splitters, it worked good again.

Posted: **Thu Mar 15, 2018 5:37 pm**

Yeah, but removing the loop make input taken unevenly, I see it's game behavior. I will try to do that another way.

One question though, why there is no problem with the one fed from loader as it's the same balancer ?

Thanks for the answer.

Posted: **Thu Mar 15, 2018 8:13 pm**

Neemys wrote:Yeah, but removing the loop make input taken unevenly, I see it's game behavior. I will try to do that another way.

use an arithmetic combinator to control that.

: balanced_unloading.png (173.21 KiB) Viewed 3436 times

blueprint string

Posted: **Thu Mar 15, 2018 9:17 pm**

impetus maximus wrote:

Neemys wrote:Yeah, but removing the loop make input taken unevenly, I see it's game behavior. I will try to do that another way.

use an arithmetic combinator to control that.

balanced_unloading.png

blueprint string

I'm not even sure my computer will be able to support the base I'm making, I will avoid putting any combinator unless I have no other choice, thanks anyway

(yes I know I should avoid belt for ups, but I can't play with bots...)

Posted: **Fri Apr 06, 2018 2:12 am**

I'm fairly sure combinators and the circuit network are computationally cheap compared to the belt update cycle.

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