Too much material in the corners! What’s the deal?
Calibration is the key
Are large circles wavy too? … I saw a post a couple of days ago about jerk settings and it was mentioned that setting jerk too low can cause this type of thing.
Ya could be some of that also but i would do basic calibrations first then go from there.
Latest Cura (14.03) generates very high volume GCode for corners, causing slowdowns. That could be the problem?