Feed from 6mm tube for Area51's clip on filament guide

I feed filament from dryboxes through 4mm tubing, but I have 6mm (OD) tubing fitted on the ends to fit into the extruder on my Qidi Tech I. Now that I have a Prusa i3 MK3, I wanted to feed it the same way. This piece is a remix of the Filament_Guide_Small_Loop_Closed in Area51's thing that this is listed as a remix of. It works good so far with the Filament_Guide_Clip_Angle.