Factorio Forums

Posted: **Mon Jun 29, 2026 1:44 pm**

I was unable to feed iron sticks or concrete into the assembler using fast inserters. It did work with long inserters.

Posted: **Wed Jul 01, 2026 6:57 pm**

post a screenshot / blueprint / savegame / ... , otherwise we can only guess what's going wrong

assembler 2 making reinforced concrete on Vulcanus