Anet A6 filament guide and dust filter

Look for updated version here: https://www.thingiverse.com/thing:2746109

Filament input port of Anet A6 is made of milled aluminum and have sharp edges which grind filament. To resolve that little issue, I've made this guide with filter, that is fastened with fan screw. Funnel is optional, must be glued on top of main part (use match or toothpick to center both filament holes), and can contain foam to filter dust as well.

You might need to add support leg to do easier bridge for ExtruderFi