Factorio Forums

what does the crafting speed value actually mean? for instance if an item has a crafting speed of one second and the crafting speed of a factory is 0.5 does this mean it actually takes two seconds to make?

Well, not directly answered, but I think it helps:

https://forums.factorio.com/wiki/index.php?title=Time
https://forums.factorio.com/wiki/inde ... ng_machine

In other words: yes.

The formula might be something like Craftingtime / Craftingspeed. So if you craft something with 3 seconds craftingtime and do this in an assembling machine 1 (0.5 craftingspeed) it takes 6 seconds (3secs / 0.5).