Take a view at this large downlaod video. I did for someone else on this forum a few days ago .the picture they posted. Here is a link to the page that started the picture in the video.
http://www.cnczone.com/forums/showth...=19346&page=44
Here is the link to the video.http://www.mastercam-cadcam.com/art1/art1.html
See if this gives you some insite.
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)
Cadcam
Software and hardware sales, contract Programming and Consultant , Cad-Cam Instructor .