This is clearly not good, this is called grinding. There can be many reasons for grinding.
My advice: reverse the screw that you used to tighten the feeder. The indicator on the outside of the feeder should be in the middle. This holds for all UM materials.
Then we have to find the cause of grinding. Biggest chance is that your BB nozzle is clogged. Instructions to unclog it can be found here
After cleaning the BB core, use the menu to load the PVA. Does it feed through the bowden tube without problems? Does it extrude from the nozzle?
Link to post
Share on other sites