Hi, I know, I'm not the only one. But up to now I did not see a single solution, but tons of jamming threads. My E3Dv6 works fine for about an hour or so with PLA (anything between 30 to 90 minutes), then the filament will get stuck. No way of pushing it with hand or so. Completely stuck way forward. BUT: I could easily rip it out, cut off the bulb at the tip, put it in again and it will work. All with the print still ongoing. Roughly one hour later the same will happen. I'm now to nearly at the end of an 3 1/2 hour print and had to do this twice. If it would be the filament diameter, I would expect such issues to happen now and then. After 5 minutes, after 10 minutes. Anytime. If it would be cooling, I do not think, that removing the filament, cutting off the tip and putting in would solve it, because it should then stuck directly again. What is going on with this piece?