Replicated defects

I have printed 4 columns for my MKII printer I am currently building, I have noticed slight defects on each one in nearly an identical pattern, it looks like a mechanical jump except it goes away the further up the print it goes, it's printed @ .2mm layer with a .35mm nozzle, sliced with slic3r in repetier host and run from a SD card, in black ABS, it cannot be defects in the material as the patterns are so similar.
Can anyone give me steer, the only thing I can think of is the code causing it?
I have attached some shots, one is my printer.

Was there another adjacent part being printed? You can get effects like this when jumping between parts.

Travel, why didn't I think about that?
I'm going on a whim here, you're using Slic3r. If you are, then I'll tell you from personal Slic3r exclusivity that it will make odd, though repeatable, travels outside the model and back into the model, even if each layer is a single area. I don't understand it, it's simply what it does, even when I have "don't cross perimeters" checked. If you don't have it checked, do so, and see if that helps.

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Realizer- One who realizes dreams by making them a reality either by possibility or by completion. Also creating or renewing hopes of dreams.
"keep in mind, even the best printer can not print with the best filament if the user is the problem." -Ohmarinus

Instantly can tell from your pictures your using garbage slicing software...

Time to get a clue...

Hope my experience helps you... enjoy Happy Printing !

<sub>Shawn
__________________________________________________________________________________________________________________

25+ Years Experience as a Manufacturing Engineer and New Product Developer
Three Years Experience... Printing 6-8 hours a day, 5 days a week, complex and close tolerance functional engineering prototypes.
Printing PLA @0.1mm Layer Height with +- 0.05mm tolerance for all dimensional shapes (except slightly undersized hole I.D.s).
No printing of... toys, trinkets, low quality prints, or other useless printed objects.</sub>

No it printed on its own

I will try checking that and see what it does, thanks