Good answer Reko! Thanks a lot. But in version 9 I don't have "Control Definitions" like in X version. Is there a line command for Mastercam 9 that I can add directly on the Post file and has the same effect? htm01 have a good idea too, but in my case I'm using surface toolpaths and it isn't works for surface geometries, only spline curves.

Hi people, I'm Mastercam 9 user. I'm in trouble with a mill machine that cannot do arc moves, only linear moves. (it's too old!) Is there a way (in the software, editing the post processor or by external nc editors) that allows me replace all arcs into linear segments?