Just changed the plastic extruder to an aluminium one.

Prints got better but still have this issue from time to time.

Cheked it while it's happening and the extruder motor start making "tic tic tic" sound without pulling PLA, I even tried to "force" PLA in but it doesn't get in even with hand help.

Here's the pic of my 5 hours printing, can anyone help me with this issue please?

http://i.imgur.com/HtiK2MT.jpg