My Ender 3 was converted to Direct Drive Extruder, but it didn't had a good solution for filament entry neck. This adapter, has a neck with a nice “trumpet flair” which help to avoid filament drag.

This adapter has three slots to use with zip ties or velcro bands to organize cables behind the printer.

Hardware:

4 Allen cylindrical head screws M3x25 mm

4 M3 nuts

1 PC4-M6 fitting

Best print with PETG / infill 25% / bed supports

See Also

https://www.printables.com/model/957649-side-base-for-ender-3-spool-holder

https://www.printables.com/model/955251-filament-spool-holder-for-ender-3