Hello from couple days i have problem with my ultimaker 2 when i load filament every thing going good i start printing and when print finish and I takting tube out it s looking like that
http://imgur.com/gqCngYg
https://ibb.co/i1jD2F
and i dont know what i have to do with this i clear every thing I changed PTFE tube and all the time it s the same i tryed higher and lower temperaturs and all the time it s the same