Old SUNLU Spool Refill Adapter - secure

Refill adapter for Sunlu spools.Give old Sunlu spools a second life.Does not come appart like other lock mechanisms due to screws. Matches old detachable Sunlu spools.Verified Spool Nr. :#42-1#43-1Should work for others as well. Matches refill filament from Bambu Lab, Recycling Fabric, etc.Features a hole for the end of the filament so avoid rotation within the spool. Requires:4x M3 Screws4x M3 InsertsWiden two of the most center vent holes in the spool on opposite sides useing e.g. a M3 drill. For better AMS compatibility, a brim on the spool to increase its diameter is adviced.