Anti-tangle bearing spool holder for Ender 3 V2 (and any other with side feed and similar extruded aluminium frame). I have used bearing spool holders before and sometimes have a problem where they spontaneously unwind causing possible filament tangles. My design caters for spools with different widths and internal diameters (some will require the adapter). The Devil's Tail spring provides enough friction so that the spool does not unwind by itself but also allows the extruder to pull the required amount of filament. Using the metal frame from the original Ender 3 spool holder I have repositioned the filament to the side in order to attempt to reduce the weight on top of the printer that may cause print quality issues. The locking screw holds the spool axle in the frame securely so it does not jump out during operation. Minimal fixings are required to assemble this, 3mm nuts and bolts x4, 608 bearings x2, and the original spool holder frame that came with the Ender 3 v2. All threads are 3d printable without support. Most parts can be printed without support apart from the rear frame piece.