bastelfreund

Hello, I have a problem with my Ultimaker 3 printer, which has done its job well so far. For longer print jobs, the Bowden is pushed out of the feeder. (Hotend AA) I made several attempts, shortened the Bowden and cleaned everything. However, it keeps happening. Could it be that the hotend is dirty and has less filament going through? So far this has happened when printing Ultimaker PETG transparent filament, and I haven't printed any other filament since then. Does anyone have a tip on how I can solve the problem? greeting Klaus