So I have been using my new E3D-v6 for a few weeks and it works well however when I want to change filament I have a problem.
I print mostly ABS, when I want to switch I bring the hotend up to printing temperature (245c) and then pull the filament out. This is what I have done for the Buda and the Hexagon but when I do this with the E3D I pull and after about 10mm it stops and sticks (very hard!!). It’s like the hot filament gets into the cool zone and then sticks to the insides.
First time this happened I had to completely disassemble the E3D and heat up the cooling fins with a torch until I could pull the filament out and then soak it in Acetone overnight to remove the rest. I even pulled paper towels through it with acetone until there is absolutely no residue is left inside.
I just now had the same issue and I ended up trying to extrude a bit (was hard as it was really stuck but finally got it to move a little) and then I was able to pull again (hard) and it finally popped out, it was not pretty and I risked breaking stuff for how hard I had to pull.
So, is there a correct way to do this? Or is this an issue with the hotend that might be known? or any other help?