Vacuum Hopper Should Pull From Workshop Storage : r/fo4
Machinery does not clog with objects at Fallout 4 Nexus - Mods and community
Fallout 4 - Manufacturing Tips | Working with the Vacuum Hopper - YouTube
FO4] My 'compact' "functional" recycling and manufacturing facility + business district. 4 mods required. (5 if you count the shop markers) : r/FalloutMods
Fallout 4: Contraptions - 10 DLC Facts You Need To Know - Gameranx