Ok. Wasn't really expect that to happen. I was thinking with the guide it should make the print even smoother. Does the filament snapped when that happened? Also, if the guide is pulling the filament too far(when the drum rolling smaller as the filament running out), does it mean if we add a hinge to the guide and add a spring to it, to allow it to contract when the filament roll running smaller? Not sure if I deliver the message correctly, but my mind has been thinking of the VHS tape, the guiding roller has a spring to it, so when the movie starts it doesn't play too slow with deep voice, nor play too fast towards the end with chipmunks voice.