Got my 2X in the mail today. Set it up and did some test prints. I'm familiar with Makerbots from using a Rep 2 a few years ago and i also own a Folgertech Prusa I3 with a similar problem to what i'm experiencing with this 2X.

My circles are not round, they're football shaped. My old Rep2 did not have this issue at all. The Prusa does have it a little, but not nearly as pronounced as it is on my 2X.

I've looked on google and saw that this appears to be a common problem with the 2X? I can't seem to find a solution, though. I've read that it may be a belt tension issue but, honestly, they feels pretty tight. I ordered some belt tensioners nonetheless, but in the mean time I wanted to check here if anyone knows of other possible causes, and solutions.

Thank you.