Prusa Mendel Filament Guide

I wasn't happy with the filament on my Mendel rubbing on the threads of the upper supports so I made this simple guide to provide a smooth surface for the filament to go through.

I've provided two models one with 7.4mm holes to clamp on the threaded bar. This one is exactly the width of my threaded rod and provides a tight fit for bolt-less attachment.

The second model has 8mm bar holes. Both models have 3.0 mm bolt holes for tightening.