Spline approximation
SolidCAM enables you to define the Spline approximation tolerance for the chain selection. Arcs on the ZX-plane are saved as arcs in the SolidCAM database; if you select an arc or spline that does not belong to the ZX-plane of the actual part CoordSys, SolidCAM will do the following:
Project the arc or spline on the ZX-plane of the active CoordSys and divide it into segments according to the specified tolerance.
In order to reduce the number of segments, SolidCAM will fit arcs on the generated segments according to the specified tolerance multiplied by 3.