Creality Ender 3 filament guide for entering the drive unit straight

I modified original design to make filament enter the drive unit straight regardless of the extruder Z position. I removed the printed bearing and decided to use the nail 1/16 inch dia as the axle. It should last for long time anyway.

Its designed to work with

No modifications to the printer necessary.

Original inspiration: https://www.thingiverse.com/thing:3269017