K8200 Filament entry guide - improved, extra long lasting

The standard K8200 extruder filament entry guide will wear down pretty fast when printing particulate-loaded, abrasive filaments like brick, ceramic, or glow-in-the-dark.

This improved filament entry guide should last at least 3x longer (note the photo showing a worn-out standard guide on the right and the improved guide on the left. The standard guide didn't even last a whole kilogram of glow-in-the-dark filament).

This improved guide is also easier to remove and replace; just
grab