having a weird qualiry issue - layer height 0.15mm - havent had any problems like this before :/ - HELP
That looks like under extrusion. I suppose you did calibrate the filament you are using. If you did, then your nozzle could be clogged. Did you recently change to a filament with a lower melting temperature ? If so, there could be some old (higher temperature) filament left in you nozzle. Crank up the temperature of your hotend and extrude 10cm or more. This will (hopefully) solve your problem.