Ender3 Filament Guide and cable releif (Bowden)

Updated version requires the 2 parts to be glued together and a very small zip tie to be inserted. The only reason for the update is that i found with cable chains installed i couldn't quite get max build height with the old design.

i wasn't happy with any of the filament guides i had found so i decided to make a simple one that has perfect alignment with my extruder. Many of the other ones forced the filament at some angle which caused a horrendous squeak during retractions.

this one uses