I love this list of tips and tricks to improve adhesion that make posted.
3d printer bed adhesion problems.
Top tips to make your filament stick to the print bed.
Print bed needs to be cleaned.
If your printer has an adjustable bed and you re having trouble getting your first layer to stick to the bed the first thing you will want to verify is that your printer s bed is flat and level.
Dust dirt and oil seem to be attracted to any place they shouldn t be including your ender 3 pro s build plate.
3d printing can be really finicky.
If that first layer of plastic doesn t stick to your print bed it s almost inevitable that the print will fail.
If the bed is not level one side of your bed may be too close to the nozzle while the other side is too far away.
The base cause of most 3d printing failures is some sort of problem with adhesion.
Cleanliness is next to godliness is a maxim to follow at the very least for successful 3d printing.