PLA Issue printing first 3 mm with Ender 3 Pro I´ve tried tunning printer settings with different Nozzle(190-210&nbsp;ºC)/ Bed(0-60&nbsp;ºC) Temperatures, Fan Speeds (0-100&nbsp;%), Cura and Slicer adjustemens but nothing worked. I still get the same bubbles in the first 3&nbsp;mm of every print. 
I also tried a glass bed and the magnetic bed that comes with Ender 3 pro and the result is still the same.
The last thing I tried was moving the 0 position of the Z axis 10&nbsp;mm up, but it didn´work.

What else could I try? Any idea of which could be the issue. Thanks in advance.
This answer hints to the correct diagnosis but doesn't explain how to fix this in Cura or any other solution other than babysteps. You don't want to adjust babysteps at every print...

Basically, your nozzle is too close to the bed (from comment 0.1&nbsp;mm to be exact). To increase the distance between the nozzle and the bed you can:


level with a little thicker paper,
move the bed down on all corners,
move the Z endstop up,
redefine the Z=0 in your start code,
G1 Z0.1 ; Move to 0.1 mm height
G92 Z0  ; Redefine zero height
install Cura plugin "Z Offset Setting" from fieldOfView (through the Cura Marketplace) and define a Z Offset of 0.1&nbsp;mm, and/or
increase the first layer height a little.