choeppke 0 Report post Posted February 5, 2016 in Printhead clogged up with filament Help request Hello, there is a big Problem with my Ultimaker-2. Printing problems caused quite a lot of filament to be stuck inside of the print head. While the nozzle is free and does print ok, during printing the material inside the print head is heated up, causing it to flow out of the head and mess up the print. Advice on how to clean the print head are very much appreciated. All the best, Christoph Share this post Link to post Share on other sites
Labern 717 Report post Posted February 6, 2016 in Printhead clogged up with filament Help request you can heat the nozzle and pull it free from the big melted mess. To remove it from the rest of the parts you can use a heat gun to soften it or unscrew the fans and put the fan shroud into hot water (if its PLA) Share this post Link to post Share on other sites
schablone 0 Report post Posted May 12, 2017 in Printhead clogged up with filament Help request I had the same problem this week (UM 2 ex). Til now I do not understand the reason. I cleaned it, changed the material and I leveled the printbed. Now everything is fine. Does anybody have a clue? Share this post Link to post Share on other sites
Labern 717 Report post Posted May 13, 2017 in Printhead clogged up with filament Help request This Can be caused by a few different things. Leaking from the top of the Olsson block where the steel nut threads on. Leaking from the nozzle threads. Print coming off build plate or something wrong while printing forcing melted plastic upwards. Share this post Link to post Share on other sites
