Filament Guide Roller

I got tired of hearing my filament going through the filament guide. So I created this. It rolls the filament instead of sliding and makes sure the flow is smooth. This was designed for the CTC Pro B / Pro X prusia / reprap clone with the plywood frame, I also have modified it for the acrylic frame geeetech version.

5 mm is for wood
8 mm is for acrylic