Easel does not carve square

I up graded to the TBD screw drive and rail kit. I had to change the settings for $100, $101 and $102.
The machine was moving too quickly. I changed the settings on $120, $121, $110 and $111.
Now when I cut a circle of say 6 inches the circle come out as 5.875x5.5. Then I tried a square of
5.5x5.5 it came out 5 3/16x 5.5. Any help Please

Gerald W

It sounds like you need to fine tune your settings. Check out this thread and my example in my post.