That's fucky, looks like waves. My lines are actually pretty straight. My print was only at 60mm/sec. But it could be the same problem.
I think the problem is also more noticeable at the X axes then on the Y axes, because the bowden tube puts keeps the head pressed to 1 side.
Some custom GCode that prints a 1 perimeter square going clockwise and counterclockwise on each layer should show it I guess...
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ddurant 0
Not exactly sure what I'm seeing.. Is it the same type of problem seen here?
making waves... by ddurant123, on Flickr
If so, that's usually caused by running at too high of a feed rate. I think it's more "resonance" than "backlash" but could well be wrong..
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