Ender 3 V2 Filament Guide
thingiverse
Filament guide for Ender 3 V2 (maybe it works also for the other Ender 3), it simply snaps above the x axis motor without any screw. The bearing (is the one of the stock extruder) snaps easily in place without screws and should move freely. It must be printed upside down and you can use adaptive layers for a better result. Let me know if it works for you or if you have any issues with that thing, hope it can help you :))
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