K8400 Change filament while printing not working!


I’m printing something with the K8400 printer.
But when I’m printing and my filament is empty, I want to change it.
So when I press “Change Filament”, goes the printer to the center but does he nothing. When I press my button again goes he further with his print.

Does someone know how to fix this?


You can try to do it manually. When you press “change Fillament”, printer goes to center.
At this moment unload filament manually: First extrude a little bit filament by pushing. (check also printhead temperature if it goes below 190-200°C => preheat the printhead again). Then unload it. Then load the new filament manually, after that resume print.

Velleman Support