Curved-Inlet Drybox Filament Funnel

Addon for a selfmade filament storage: This curved funnel keeps the filament from breaking, no matter how empty or full the spool is. The funnel makes sure that the filament always has enough bend radius as it enters the funnel and that it leaves into the teflon tube in a straight line instead of at a possilbly sharp angle. Inner dimensions are for a 4mm teflon tube with 2mm inner diameter, for 1.75mm filament. Mounting holes are simple through-holes for nuts and bolts with washers, screw sizes