I'm printing calibration cubes on my Ender 3 and I'm getting some pretty good results overall with the "Normal" Cura settings and a .4 nozzle. However, my first couple of layers are rubbish.

The cube on the left is my first test on Normal settings with 200C nozzle and 60C bed (PLA 1.75). .15 layer height, .2 initial layer height, .4 width. Infill 10%, Grid. Print speed 60, infill 100, initial layer speed 30.

Cube on the right has a lower bed temperature at 30C and lower printing speeds. Print speed 40, Infill 40, initial layer speed 20.

The print quality for the cube on the right is overall a bit poorer with more visible layers on the outer walls, and also the corners are less sharp. But more importantly, the lower bed temperature and the slower speed did nothing for the first few layers.

I have also included a photo of a cube that I stopped after the first couple of layers. As you can see it is not looking good at all. There are deep grooves for every pass of the nozzle. The grooves can be heard when the nozzle passes over the same area in the other direction as it scrapes the layer underneath.

Any ideas on how to fix this?

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