u/Glad_Heron_8418

I bought a used Ender 3 Max Neo on marketplace. I've cleaned the printer with some iso and extruded the old pla in it and replaced it with a new roll of pla. It seems decent for my first print but im not sure how to get rid of these random bumps, the weird pattern on top, and im getting little hairs on it. Maybe some of it is normal but I literally had no idea how to work this thing until yesterday.