Anet A8 Filament Guide

-- ATTENTION --
Though this filament guide works, if you have an extra bearing lying around, you should take a look at my improved one. https://www.thingiverse.com/thing:2502487

This is a filament guide for the Anet A8. Intended for a spool positioned behind the printer.
I didn't want to put my spool holder on top of the printer, so I kept it behind the printer and designed this part.

The picture is a tiny bit different from the model. I decided it needed a slightly wider base afterwor