simonbrouwer

Hi, Printing with ABS (started out with PLA a long time ago) I regularly have some issues with some under extrusion, and I wanted to see if cleaning the print head would help. However after several tries with the "atomic" method, still no "cone" comes out. I heat the printhead to 260 degC, push a cm or so of filament through, let cool to 110 degC, and pull quickly on the filament. Each time I get a more or less straight end, as if the filament simply breaks off from the cone. Maybe there is too much buildup of contamination that adheres strongly to the inside of the nozzle? I'm wondering what to do next. Dissassembling the print head and try to clean or replace the nozzle? Best regards Simon