Filament spool insert (52mm, 55mm, 57.5mm)
thingiverse
Inserts for a 52mm, 55mm and 57.5mm ID filament spool with an 8mm rod. Examples of filament that the inserts can be used with are listed below, but they will fit many other brands as well. A 52mm insert fits Esun. A 55mm insert fits Hatchbox. A 57.5mm insert fits 3D Solutech. I recommend printing one of these inserts first because different materials and printer settings can affect how tightly the insert fits into the spool. Scale up or down as needed to ensure a proper fit. You may also be interested in my wall-mounted filament spool bracket, which is available on Thingiverse at https://www.thingiverse.com/thing:2781083.
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