CR-10S Inconsistent Layering

I've been wrestling with this problem with my CR-10S with an e3d v6 hotend for quite a while now. The layering is quite inconsistent in the X and Y directions (and appears to be about the same in both). 

 

I've gone through the hardware with a fine-toothed comb, and I am confident my belts are tight, axes are secure, and bolts are snug. I'm less sure about settings.

 

Changing speed, acceleration, and jerk does not change anything. Changing temperature does not change anything.

 

This was printed in Hatchbox Black PLA at 195C/60C with a 100% flow rate at 50mm/s. 

Note: the print looks good from the side, but horrible from this angle.

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Hi @jsParadox, what are the dimensions of this part?  What layer height are you using?  What fan setting?

 

Although it's impossible to tell from the photo for sure, it looks like it might be quite small, in which case it could be inadequate cooling on those final upper layers.  With small parts I tend to print two or more at a time, or use a "throw away" pillar of some kind to allow very small details more time to cool between layers, even at 100% fan.  

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The part is quite small. The upper circle is 30mm in diameter. I'm printing at .15mm layers and 100% fan. I'm not concerned about the cooling issues visible on the upper part, but the lines on the side of the print which look like small layer shifts.

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Hi @jsParadox they could be layer shifts, but they could also be filament issues - with a part that small minor fluctuations in feed will be much more noticeable than on a larger part.  Is this a new problem or has it always done this?  

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