Strange ripples at the end and start of each layer

[Nick__Mad 0]

Could someone please remind me how to get rid of these artifacts? I remember that there is some sort of setting in Cura that addresses this particular issue but I can't quite remember which one.

In case its hard to see in the photos there are some odd artifacts that are created when the printhead finishes and starts drawing layers.

 

 

[gr5 2,167]

I'm pretty sure it's the speed change.  Set the infill/inner/outer shell speeds all to the same speed and I think it will mostly go away.  When it starts the outer shell it typically drops the speed in half and so you get brief overextrusion as the pressure is equalized for faster printing and then it suddenly slows down.