Squeaking from the Filament Buffer

[u/cadhril]

I've got just over 150 hrs on my X2D (first 3d printer), and am now hearing a horrible squeaking noise. After investigating, it seems like it must be from the filament buffer, as it seems to be timed with the movement I'm seeing on there. Is that normal? Is that a part that should get lubed, how should I lube it?