Pretty sure I’m having heat creep up the Bowden tube, as it’s getting jammed a few cm back from the hot end and then can’t push the filament any more. When I get it out there’s a little molten bulb at the filament.
In this fail, I think it jammed as usual and the extruder found a way to keep going.
I tried turning down the hot end from 215 to 200 and it’s still failing. My cooling fan is running at 100%.
This is the third time I’ve had this print fail at about this layer, around 1 hour into what will be a 26 hour print.
Any ideas?
That looks like Capricorn tubing. It’s got a 1.8mm, not 2mm, inner diameter.
I used to regularly run into cheap filament that varied up close to 1.8mm in diameter that would get jammed in the tubing.
When I did, tossing the roll was my only option.
Capricorn is great for reducing filament backlash and printing flex, but requires very consistent filament.