Filament Guide for Original Prusa i3

My kids have started printing and they love it! The only problem? They want to change filaments often, but changing the filament is difficult for them because the spools are awkward and a little heavy. This solves the problem.

This piece clips to the top of the Original Prusa i3 printer so everyone can leave the filament in a filament box while it's printing. The curvature of the guide minimizes friction to ensure the extruder can pull the filament just as easily as it could when the filament