

Explanation: The first layer is very essential and fundamental.
There are two scenerios that happen in the printing.
1.There are gaps between each lines, which means the Z-offset need to be lower.
2.There are waves on the printing surface, which means the Z-offset need to be higher.
During the printing, if the model is too close to or too far from the build plate, you can use the fine-tuning function to adjust the nozzle height:**
1.Tap "Fine Tune".
2.Select a tuning step of 0.02, then use Z+ (raise the nozzle) or Z− (lower thenozzle)to adjust the height until the extrusion lines are evenly laid and properly aligned. Proper fine-tuning helps achieve optimal first-layer adhesion and print quality.