Extuded quantity is not even

Hi all of you
I am experiencing a new problem that i never had before.
When printing it suddently requires alot of power to push the filament, and almost nothing exit from the nozzle, and few seconds after, it will restart extruding well, but in the mean time I guess the pressure increased in the hotend leading to too much plastic extruded.
My extruder is really powerfull, meaning that if it's stop extruding it's because it's impossible to do so, even by hand.
I am printing 3.00 mm pla with a bowden set up and a e3d metal hotend imitation.

I am out of ideas for the cause of the jamming, the heat breaker is heavily cooled down...

Sounds like your temperature might be too low or, if this is only happening on the first layer, your nozzle is too close to the bed. What temperature are you printing at?

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Did you print 3mm PLA successfully with the imitation hotend before? I have rarely heard anything good about printing PLA with those imitation E3D hotends.

The last time I had jams, I was printing PETG, then I turned up the heat and the jamming went away. As above, printing hotter might help, but might also worsen the problem

Edited 1 time(s). Last edit at 02/16/2015 06:33PM by Ohmarinus.

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