Hello. Im hoping I can get some advice. I am seeing distortion in my print dimensions when both X and Y axes are running. For example if i try to print something with diagonal lines features wont come out evenly. I tested with a simple + shaped print then rotated it 45 degrees. The result is that 2 of the arms of the + are skinnier than the others. There is no such issue when printing without rotation. Also circles come out eliptical and hexagons are not symmetrical.

If you look at the attached file you will see what i mean. Note the + in the top right of the image has wider horizontal bars than vertifcal bars. I did not see this issue when printing orthogonally (+ on the left) The hexagon and odd shaped circle can be seen in the middle image.

My first thought was the belts probably not as tight as one another. Does this sound right? Has someone else solved this issue in the past?