Filament guide

youmagine

I noticed that the filament guide that comes with the Ultimaker 2 can hinder its movement significantly. Repeatedly retracting it causes wear and tear on the original guide. I decided to create a custom design piece with the same dimensions as the original, but this time incorporating a pulley system. A single M3 screw is all you need to complete the installation. Update 1: I've come up with an even simpler pulley design that's easier to print and test.