I read in your manual, much after I sent the request that G61 and G64 can be used. One turns CV on the other Turns exact move on. 

My problem that caused the inquiry is:  On a clock face that is about 11 inches in diameter, I inscribe two circles out at about 10.25 and 10.5 inches in diameter, between them I inscribe the minute and hour marks, 48-minute marks which are shorter and 12-hour marks which extend from the inner circle to the outer circle.  In the first quadrant +, between 1 and 4 the marks are almost parallel to the line between the center and the 3. In the last quadrant between 9 and 12 the form a crescent shape.

I am trying to determine why this is happening as I can't cut clock faces with funny looking minute and hour markers.  It does not appear that I am losing steps as the end of the cut ends exactly at the beginning.

As CV is the default, I cut my speed down from 80 in/sec to 25, thinking it was rounding the last of the cut. (didn't make a lot of sense as half of the cuts were fine.) but worth a try.

Any suggestions would be appreciated.

Regards,
Ken Hall
Quad 1.jpg
Quad 3.jpg
Quad 4.jpg

It appears that CV is causing the issue and to confirm this run the same file in Exact Stop mode ( G61 ).

If this resolves the issue then your motor tuning should be adjusted to increase the Acceleration and reduce the Velocity for both the X and Y axes (saving the changes). Do this in stages until you obtain acceptable results when running in CV mode ( G64 ).

Tweakie.

EDIT; There is more information of how CV affects the toolpath in David Bloomfield's .pdf file which can be downloaded from here;  https://www.machsupport.com/forum/index.php?topic=7923.0