print quality - What causes ripples on part of first layer? - 3D Printing Stack Exchange

I'm having issues with ripples on the first layer of big flat prints. The initial corner of a big flat print is fine, but then ripples begin to form as shown in the screenshot. I'm just a newbie

print quality - What is causing 'droplets' on first layer? - 3D Printing Stack Exchange

print quality - Second layer: gaps, poor adhesion - why? - 3D Printing Stack Exchange

print quality - Any suggestions on problems with viscosity? - 3D Printing Stack Exchange

3D Print First Layer Ripples - Ankermake US

3D Print First Layer Ripples - Ankermake US

Weird ripple effect on first layer (MK3) – How do I print this? (Printing help) – Prusa3D Forum

print quality - Under-extrusion after a certain amount of successful layers? - 3D Printing Stack Exchange

Waves/Ripples in bottom and top layers : r/Ender3S1

Any ideas what would cause these ripples? : r/3Dprinting

I keep getting this ripple effect in the first layer of my print. : r/FixMyPrint

print quality - What cause the pattern in a large area? - 3D Printing Stack Exchange

Mastering the First Layer: 5 Tips for Perfect 3D Prints - Smith3D Malaysia

Prusa First Layer Calibration: All You Need to Know

First layer wavy and lifting up : r/prusa3d

How to get PERFECT First Layers on Your 3D Printer!!

First Layer Gap Help : r/ElegooNeptune3