Thanks m8, I bought a carbinate Glassplate.. but still have like 0.1mm (normal paper) difference between corner and middle. Does this may cause the problem? I?ve put in a new nozzle today still the same results even with a speed around 50-60. Thanks for the videos on the other threadt. Will watch it in week if i find time. Where you want me to start with to configurate the printer. Is Cura Ok or shouldt i switch to a other programm?