Ender 3 Pro Filament Guide
thingiverse
Update to an excellent design. I have a 2020 Ender 3 Pro with one of those red aluminum extruders and the alignment was a bit off where the filament exited the guide and where it entered the extruder. I moved the coupler 3mm away from the Z-axis screw and down 2mm. While I was at it I added 1.5mm depth to the base underneath where the screws clamp down for added strength and opened up the holes on top for purely aesthetic reasons. I used the same print settings as OP without issue.
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