Actually, it's not as much different as i thought. I'm still having some "slips" of the filament
There is still a quite big (15cm or so) distance between the bottom of the extruder box (where goes the filament) and the extruder itself, it makes tests with 1.75 filaments impossibles because it bends.
Moreover, the "top" part (the extruder motor and filament box) is shaking a little bit during print, but it doesn't seem to be a big problem.
One thing I'd like to do is ordering a new bowden tube and cut it to put it into the "second" part of the filament path.
Aonther thing I want to try is using another plunger (maybe Delrin Extruder), to test for differences
