I was printing something with PET-CF, and everything was going well.
I got a message that the printer had finished, but I found the project stuck between the left nozzle and the position where the nozzles return to home.
After removing the print, I saw that the left nozzle was completely covered in PET-CF.
I reheated the nozzle to 230°C and managed to remove most of the PET-CF, but I also discovered that a wire had come off!
Contact support. That’s the nozzle tip being pushed out of the throat. There are countless examples of this happening on the H2D. They should send you a new nozzle and heater. Send them the photos and explain what happened. Upload the logs in that same ticket.
Not the actual full hotend, just the tip. Those blobs occur when the either the tip becomes partially or fully dislodged from the throat (they are pressure fit) and filament extrudes out from the throat around the tip.
Its possible that a blob developed because of nozzle scraping and the nozzle itself is fine. Have you cleaned he mess off the nozzle to see?
So what does the time lapse show?
I had that happen on the right when a part let go from the build plate and just rode along stuck to the nozzle while the all the flow went vertical into the heat sock.
This can happen at anytime, just wondering why there is no type of sensor to detect build up under the sock and stop the print before taking out the heater?
If filament starts accumulating on the nozzle while printing with carbon fiber filament, try a Z-offset some carbon fiber filaments perform better with a slightly higher nozzle distance.