I am trying to cut a keyhole with a flat and a transfer radius on both sides where the two hole tangent. The book I have says I can leave the (X,Y) starting points as question marks. Then i just need to give the centers of both circles as I and J values. I do not understand the up, down, left, right commands of the programming. I also entered in the radius to be smoothed in. I quess I need to know what I am doing wron and the up, down, right, left commands mean. Thanks.