Filament Guide

I have been using the Tech Shop Filament Guide which works well but I was having problems with the filament un-spooling or jumping off the spool. This guide uses an 8" piece of PFTE tubing (4mm OD/ 2mm ID) to guide the filament which keeps it on the spool. The tubing reaches part way over the top of the spool. This design installs best on printers with an extruded aluminum chassis but may also be used with other printers using the two 5mm mounting holes. Since I installed this guide, I have not