Hi,

I have a mini mill self converted to CNC.

Last night and I noticed that when cutting a largish flat surface with a .5 inch end mill I am leaving lines on the work. The lines are parallel to the X axis indicating the Y axis is out of tram.

The lines are deeper towards me (if that makes sense) and are maybe 1-2 thou deep. They are noticeable and can be felt with the ball of your finger.

Has anyone experienced this?
Is there are way to correct this?

Thanks
phil