Hey, whats your picture is showing us is a bit too tight level at the “red” spots…- This is caused from the machine bed frame.
Here is a picture to explain my words:
Your first layer is nearly perfect, i would not worry about the bit “fluff”.- The nozzle will overprint it the next layers so it would not be seen anymore.
If you really need to calibrate your machine extremely well, you have to calibrate the bed manually, read this post:
