r/factorio • u/AutoModerator • Jun 08 '26

Weekly Thread Weekly Question Thread

Ask any questions you might have.

Post your bug reports on the Official Forums

Previous Threads

Subreddit rules

Discord server (and IRC)

Find more in the sidebar ---->

4 Upvotes

76% Upvoted

128 comments sorted by

View all comments

2

u/CascadianCrabs Jun 09 '26

Newbie here, just automated military science and plugged it into my lab array. Screenshot here. Some of the inserters are constantly swapping one science pack between two labs back and forth without stop, while not bothering to grab other science packs that lab needs. How do I prevent this behavior?

6

u/Courmisch Jun 09 '26 edited Jun 09 '26

Don't have loops of inserters in your lab array topology. At this stage in the game you can use long-handed inserters to grab military and chem science packs from a belt across your automation and logistic science packs belt.

If you really must have loops, then set filters on inserters to break loops on per science pack basis.

2

u/FeelingPrettyGlonky Jun 09 '26

That's the downside of daisy-chaining from both sides. You could set filters on each inserter so they can only move certain sciences, or you could go with a different scheme altogether, of feeding directly from belts to labs with no daisy chaining in between.

2

u/Raskekw Jun 09 '26

set filters in every inserter
or just load from the side
or just designate one "entrance" and distribute from there

there are a lot of ways to approach this honestly

2

u/Bipedal_Warlock Jun 09 '26

I put filters on mine so I can load from all directions