Printing a bunch of calibration cubes, test temp towers and test retraction towers helped me figure out temp/speed/flow/retraction and many other settings I could live with for the specific Overture PLA I used. Apparantly even different colors of the same PLA can make a difference https://www.youtube.com/watch?v=BMSp1WDqtpI, so consider testing, tweaking, testing, tweaking before printing parts. At times, it feels like we need the patience of a saint, and perseverance of a pitbull for this hobby.
Shared cura profile used to print my LR3 Core at Purple-black-rainbow LR3 🤷♂️ , build video @ https://youtu.be/FJ7nYio8oOE - #9 by azab2c it’s far from perfect, but worked for my particular Ender 3 Max. 0.6mm nozzle, 0.32 layer height, a snail pace of 45mm/s speed, slower for initial layer.
Rightly/wrongly, I configure almost everything to be divisible by 0.04mm after seeing videos by Chep and others about minimum stepper motion increments. Mentioning because I see folks using 0.5mm nozzles, curious if they know about, but disagree with, 0.04mm being a magic number?