Filament guide with bearing

This is a design i made to guide the filament better from the reel to the extruder. It's basically a construction to hold a small bearing with a v-slot and the filament is guide through this guide so that when the extruder pulls for more filament, the traction is guided with te bearing.
The design is made in OpenSCAD with the parameters defined up front, so you can easily modify the design to suit your own needs.