Extrusion problem with smoothieware+AZSMZ

Hi all!

I'm almost having a nervous breakdown trying to get my AZSMZ controller running correctly. I am using default firmware (which is smoothiewre from january 2015).

I have calibrated the extruder steps, so that "M83 / G1 E50" feeds exactly 50 mm of filament. However, when running command (when nozzle x,y=0,0) "G1 X180 Y180 E50 F300",
extruder is only extruding about 20 mm of filament. This give my really bad prints ofcourse, since prinitng movements extrudes far to little filament.

I've tried to flash my controller with a newer firmware, but when I do this, my LCD goes blank, so I had to re-flash the original firmware (why?)....

Anyone know smoothieware and or AZSMZ good enugh to give a qualified guess how to solve this problem?

... check, if there are some "extrusion-multiplicators" in your software ...

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Viktor
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Call for the project "garbage-free seas" - [reprap.org]

I'm using Repetier. In the Slic3r, there is an extrusion multiplier, but this is not used in my example in the last post, because entering commands manually (not through a sliced gcode)....