***I run a .6 Nozzle on most everything, please verify when printing that your nozzle size is selected before printing.
Pictured above is before i reinforced brackets, I will try and upload photos soon.
I took a 1.250" dowel pin or closet rod and bolted under table and hang over 50 roles of filament under table.
Works great,
I pull bottom out and can slide spool off side.
Standard size you are able to hang closer together and pull roll off without moving spool next to it.
Sub Size you will need little room to get spool off holder.
Petg or Carbon Fiber or any strong material recommended to keep heavy rolls from having slight bend to bracket.
Please try printing PLA with strong setting and provide feedback if it hangs straight.
this is my 6th version, I have put the spool hangers at slight angle to help keep straight if printed with less filament or weaker material to keep straight up and down.