Left is Generic PLA, right is NUMAKERS PLA. I constantly have more visible layer lines with NUMAKERS PLA. On all the spools I bought. It’s not a bad spool or anything. I have tried calibrating all the settings. Temperature, speed, extrusion multiplier, minimum cooling time. Nothing seems to solve this layer line problem on the NUMAKERS PLA. But with all other Brand of PLA it just prints fine. Any help is much appreciated.