Hartelijk bedankt voor je antwoord
Al the settings are correct, just as above.
It can be the nozzle, I've had a overheating problem a few months ago. (Wiring problem, to much pressure on the cable)
But the weird part is that if printing at an angle the print will look better than the print of the UM2.
The machine is further in perfectly working order, this is the only thing that is bothering me.