ConnorB5338

Hi there, We're having some issues with one of our Ultimaker 2 Extended+'s at work where after about 3 minutes of printing, the filament will get jammed in the clear bowden tube due to the feeder gears eating into the filament and the printer will start printing in air and not extruding any material. I've tried opening the feeder box and cleaning out any dust and filament particles, cleaning the two gears that latch onto the filament and testing different tension settings in the spring however the issue still persists. I'm quite certain there are no problems at the extruder end as i've changed the nozzle out for a brand new one and there are no obstructions in the extruder. Is this a common issue or do you have any suggestions on how to fix this? Or are there any specific parts i should look to replace first in the feeder mechanism such as the gears the filament passes between or the motor itself? If there are any pictures i can take which may help diagnose the cause please let me know. Images below show what happens after printing for a few minutes Thanks for the help, Connor

Hello there, I am printing on a Ultimaker 3, 0.4 Nozzle, 0.15 layer height with White Ultimaker PLA at 205C. (This problem is also happening on our Ultimaker 2's where i work) I'm experiencing these inconsistent and ugly finishes on the primarily inside perimeter of prints (Please see attached). These inconsistencies seem to be happening randomly and i have little idea what could be causing them. The other picture shows bridging which looks to be bad adhesion to the previous layer. Any idea for things to investigate to get this to stop happening? My only guess is that although we try to stop it, we have sometimes run abrasive filament through these nozzles. Is a damaged nozzle something that could be causing these type of blobs on the inside perimeter of shapes? Thanks for the help!