When I create a revolved base/boss(like a shaft or wheel) in Solidworks and I import into Surfcam and create > spline > cross section to get my geometry for lathe tool paths, why do I have to redraw some of the horizontal lines and always the radius's to get true toolpaths? I have also tried this with Create > Spline > Surface Boundry with just about the same results. Is there something that needs to be toggled on in Surfcam or do I need to do something different in Solidworks or Surfcam? I am running Vel. 4 and 09 Solidworks.