ROBO 3D Filament Guide

When I purchased my ROBO 3D R1+, it came with a black filament guide mounting on top of the printer. It can slide around freely along the top groove. I found it is a nice cool guide that I use it every time I print. Since I have a couple filament spool holders sitting on top of my printer, I decided to print another one so each spool holder would have its designated filament guide.