kblackAPS

Just cleared it thanks to your advice! You rock!

Hi, Total 3d printing newbie here. We have an Ultimaker S3 at work that I've been asked to set up. Everything was going fine until I was doing my initial feed of the black PVA. It was incredibly hard to get it into the feeder tube. When I finally got it in, I noticed there was a silver nub in the tube. I haven't done the initial feed out of fear that this is going to block the machine or harm it in some way. Is this just a bit of test material that got stuck in the tube? Any help would be appreciated. Pic attached.