Does anyone do anything special when they switch between filaments?
I usually heat the extruder up about half way and pull out the filament by hand. This seems to bring out most or all of the filament I'm using. However I've been having consistent jamming with my three pla filaments. I suspect there is some abs in the hot end but I've extruded pla at abs temps in hopes of removing any unwanted abs still lurking. Any ideas?