Weird Peeling on First Layer
I got my assembled Prusa MK3S three days ago. Everything worked perfectly right out of the box. Calibrated fine, first layer calibration went fine, and my first 20 or so hours of prints went perfectly. However, today something odd started happening. I started getting this weird peeling on my first layers that almost looks like the outside of the nozzle is scraping the layer lines. I recalibrated the entire printer, cleaned the nozzle, switched over to the Prusament that came with the printer, recalibrated the first layer and I cannot get the result in the picture to go away. It looks like I'm at a good Z offset. It's just when it lays down a line next to another one it pulls the edge up. I'm printing on the PEI sheet. I'm stuck, any thoughts?
RE: Weird Peeling on First Layer
A new sheet stick a little less then a older one.
Most problems are a not clean sheet, and first layer not 100%.
Clean sheet with dish soap 3 times, then wipe with a clean piece of paper, then print.
First layer, try a little higher or lower, in your picture i would say it is OK.
If filament is bad(a little), the you could try first layer hotter(extruder) and bed a little hotter, normally this is not needed, if you have this with several filaments the it is something else.