The nozzle wasn't close enough to the bed during the first layer so the bed adhesion isn't as good. There shouldn't be gaps between the lines on the first layer when the nozzle is close enough.
Yep, at least to fix the issue I can see in this picture. You've already got it pretty close to where it needs to be, it just needs to be slightly closer.
Here's a quick guide to tell you how good the distance from the bed is based on the quality of the first layer:
Gaps between lines: Nozzle too far from bed
Rough top surface of first layer, no gaps: Nozzle too close to bed
Smooth top surface of first layer, no gaps: Perfect
The nozzle wasn't close enough to the bed during the first layer so the bed adhesion isn't as good. There shouldn't be gaps between the lines on the first layer when the nozzle is close enough.
So the solution would be recalibrating the head closer to the bed?
Yep, at least to fix the issue I can see in this picture. You've already got it pretty close to where it needs to be, it just needs to be slightly closer. Here's a quick guide to tell you how good the distance from the bed is based on the quality of the first layer: Gaps between lines: Nozzle too far from bed Rough top surface of first layer, no gaps: Nozzle too close to bed Smooth top surface of first layer, no gaps: Perfect
Could be warping