As James said, either you CAD drawing is drawn with line segments, or you're missing a setting in your CAM program. All the CAM programs you mentioned should cut regular G2/G3 arcs.
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Gerry
Mach3 2010 Screenset
http://home.comcast.net/~cncwoodworker/2010.html
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management) |