Haha Thanks, I forgot about the other two pins 
I am printing with PLA at 200°C with 40mm/s.
The PLA that I am using is not very good, especially for beginners who want to learn how to print with the 3D printer.
It is a type of PLA that looks too liquid when it comes out of the print head but dries up immediately creating strange threads that also accumulate PLA chunks that stick to the print head.
I recommend a larger print head “0.6~0.8” compared to the one I am using which is “0.4”
All credits of successful prints go to Anycubic i3 Mega which prints quite well 
Next time I will show the printer settings maybe someone will find them here interesting 
I leave however the photo of the pla that I am using which I do not recommend much for small print head, and for very fast printing.
