Hi guys! I have been working with Mastercam since version 6.I am currently running on version 9.1.Can anyone tell me how the heck to program in a program park.On my machine that would be an M0.

I recently wrote a program to machine a internal hemispherical mold half.I used toolpath/contour to do it and it worked fairly well with two exceptions.One is that this method will leave a xxxx at the bottom center of the hemisphere.The other is that the surface quality diminishes as the ballnose gets closer to the bottom.Do any of you mold makers or anyone have any suggestions?Thanks!