Hi. All. Between my last post, I found part of the answer to my problem.Saw an article Quick CNC. As in their page, changing the mode from Constant Velocity to Exact Stop fixed the problem. Only thing is now when cutting my little model window the machine cuts the straight lines in a smooth action , but the small curves it cuts in a small steps at a time speed. Should I change my motor and velocity settings to improve this??? In the quick article the settings they have are a fair bit faster than mine are set at. Mine is at 2000 for the X and Y. They are suggesting 4800 and 9600 for the X. Will this cause any problems??? I have noticed that the X speed is painfully slow, the way it is set now. Regards ...Ron.