Has anyone heard this cyclical rattling/buzzing sound coming from a Wades? ...
https://vid.me/G6FM

I've tightened and looked at every part of the extruder and cannot find it. I do know it's related to the big gear; the rattle will repeat when the gear comes back around to the same spot.

Also, it does not do it much on perimeters; just mostly on back-and-forth infill.