It sounds like an acceleration setting issue. You didn't mention what setting you are using. Try taking it down to 20 or 25 and see what happens. If the acceleration is set to high, it can also affect cut quality. Keep in mind that direction changes are going to be abrupt, and especially noticeable when cutting something like a detailed 3d model. I am in the process of cutting some custom designed Victorian bullseye casing rosettes. The direction changes on the roughing passes, and stepover position changes on the finishing passes are quite noticeable. Like you, I am using NEMA 34s and Gecko 214Vs. However my control hardware and software are different. I'm running a PMDX 126, PMDX 107, ESS Smoothstepper with Mach4. Doubtful that the hardware/software are having anything to do with your issue.

Please report out on what the folks at Avid have to say.

Oh, one other thing. This thread probably doesn't belong in the Gecko forum. Very unlikely this has anything to do with your Gecko stepper drives.

Gary