Not looking for support, just wanted to show newcomers that good printers with good calibration also can make spaghetti.

I'm not entirely sure what happened here, as I didn't pay attention, but stuff like this usually happens when a booger of nozzlesnot sticks to the print somewhere and hardens, and next time the unsuspecting print head comes along it hits the (now solidified) snot, and the belts skip a tooth or two.