ssayer - which firmware/printer model do you have ?

I tried a converted slic3r gcode with the knp convertor yesterday and nothing happened. I think the head heated up but nothing printed. Then again I get exactly the same thing with simplify3d and my right extruder.
I'm thinking mayebe it's time to update the firmware.

Haven't tried it with cura yet, but hey I'll have a knp printer soon anyway :-)