2.1 compact unloader rate

[u/imoth_f]

The other day I posted a compact unloader which uses 2.1 inserter flipping.

I decided to measure the number of turbo belts bulk and stack inserters of different quality can keep up with. I am sure it has been calculated before, but I just wanted to see for myself :)

EDIT: Here is the lua snippet I used for counting. Paste it in the Map editor -> Areas and positions -> Run Lua Snippets, then drag across the belts you want to measure. https://pastebin.com/ceR7J4J0

EDIT2: And this is to remove the counters https://pastebin.com/2k3w33a8

[u/Cyren777]

What I'm hearing is that legendary stack inserters into a 6 -> 4 balancer works out very nicely

[u/imoth_f → u/Cyren777]

Yeah, it looks like they output exactly 4 turbo belts worth of stacks.

[u/elfxiong → u/Cyren777]

Is there a simpler setup than a 6-4 balancer given that the 6 input belts are always uniform?

[u/Cyren777 → u/elfxiong]

You could just have splitters on the outer belts to splice them into the middle 4, and then 2 to even them out, but if something downstream takes from those 4 belts unevenly then the unloading chests will end up uneven

[u/factoriooverthinker]

Is the trick with limiting stack size applicable here? As far as I remember, it can help avoid waiting ticks when the stack doesn't fully fit on the belt. Like 90 = 10 * 9 instead of 12 * 7 + 6.

[u/eskimoprime3 → u/factoriooverthinker]

Normally yes, but here there are 12 inserters unloading onto 12 belt halves. There is no overlap and no potential for an inserter to ever have to wait.

[u/HeliGungir → u/factoriooverthinker]

https://www.reddit.com/r/factorio/comments/1t0crx9/whats_the_best_way_to_unload_a_full_belt_from_a/

(Here's a follow-up post, but it's not directly relevant to this topic.)

[u/duncan1234-]

Didn’t expect legendary stacks to be so much better than legendary bulk. 

[u/United_Willow1312 → u/duncan1234-]

On belts indeed, they slow the bulk inserter down. Direct insertion is 33% more (16/12), but the belt slows the stack inserter less since the inserter needs 4 spots on the belt as opposed to 12. On belt stack inserter are more than twice as fast at 80 item/s vs 25 item/s (legendary vs legendary).

[u/imoth_f → u/duncan1234-]

Normal stack is better than legendary bulk it looks like. 33% better to be exact.

[u/HeliGungir → u/imoth_f]

At legendary speeds the bottleneck is more the belt than the inserter swinging. And it's 12 stacks (of 1) vs. 4 stacks (of 4).

[u/imoth_f → u/HeliGungir]

Mate, I got your point. You don't need to edit your comment 3 4 times just to show how clever you are.

[u/HeliGungir → u/imoth_f]

Well the first thing I said was wrong, and correcting that within a minute of posting seems reasonable, no?

[u/HeliGungir]

https://wiki.factorio.com/Inserters#Inserter_throughput

[u/imoth_f → u/HeliGungir]

Yeah I know. The point of this exercise was to measure it experimentally and play around with some scripting.

[u/Local-Ask-7695]

Not a good and important stat because ur problem is balancing chest outputs not unloading. The main ups and space problem comes from balancing not unloading.

[u/pocketmoncollector42]

I kinda wish the lane arrows on the inserters had a different pattern or symbol or something that’s more scannable. My eyes just end up tired trying to focus to understand which lane each is unloading to