3d printer level test and stringy test

Two tests.

one is 0.4mm thick dots across 6in deep and 8inch wide area.
print at 0.2mm layer, and check for how nicely the dots lay down.
Adjust height where layers are too thin or thick.

Second one is a stringy tower.
print start at you default speed, temp, and layer ht, bed temp etc.
adjust parameters until you get a setting that is best for your printer and filament.