brianl

I upgraded to the newer Cura after not printing since last fall from my pc. One of the engineers, who is not here anymore, used several rolls of filament on the U2 we have and updated the firmware. With the new Cura and a variety of filaments (all PLA) I can't get this to print well at all. Foamy, jamming, blobs, not that the filament is feeding and not sticking to the bed, this just isn't feeding well. I pulled the entire head apart and it is very clean but just does not work anymore. Did something in a firmware update or Cura update allow for foamy prints? I tried temps in 10 degree increments up to 260 and it just never flows. Do I need to change the feeder device? I am pulling the recommended specs from Cura. Stock nozzle.