While printing yesterday the filament stopped flowing the hotend while the extruder tried to push it through a e3d v6 head. Stopped printing and found out that all the hotend was lower that normal, while screwed normaly on the extruder. I tried to remove the filement from the hotend and got this peculiar shape Th filament shows 2 thick ends and a middle portion which was soft enough to be lengthened while pulling. Then I tried to remove the hotend. Nothing I tried worked. I could unscrew and remove the heatbreak from the heatsink, but the heatsink wont move. I can rotate freely the heatsink but when I try to pull it down I fear I will break all the x-axis. I believe the heatsink is held in place by the PTFE tubing which for some reason in stuck in the extruder. What can I do to free the heatsink and the tubling
Did you heat up the hotend before you tried to unscrew the nozzle ? Usually 185°C is sufficient to loosen the nozzle enough to unscrew it.
The part of the hotend comprising of the heartbreak, the block and the nozzle came out a single piece and I dont see any filament inside. As I said I can't remove the heatsink with the Ptfe tube attached. I don't know why the tube is stuck in the extruder but I can't remove it so I can't lower the heatsink at all.
just removed the tube and guess what... I can't remove the heatsink from the plastic extruder. I can't understand what is going on. I inserted by hand the heatsink in the hole of the extruder and used screws to keep it in place. Now the heatsink head is larger than the hole and I can't remove it at all. Can aluminum get larger?
Guess your fan was stopped and the heatsink started melting the plastic. Try to heat it up again with hot air or a soldering iron and then pull out quickly, maybe you can save something.
