Cutting a Spline in Router-CIM

Splines are special objects in that they have a continuously changing radius. Being such, they must be converted into arc and/or line segments to be able to produce NC code. If the AutoCAD Express Tools are installed, the FLATTEN command is available and Router-CIM will use it to convert the spline. You can also use the command manually in AutoCAD by typing FLATTEN at the command line or through the Express Tools menu or ribbon. If the FLATTEN command is not available, Router-CIM will convert the spline into small line segments for NC processing. If the FLATTEN command is failing to convert the spline, you may want to disable it from being used in Router-CIM Automation Suite.

To do so, add the variable *NOFLATNSPLINE* to the System variables with a value of T.

Click here for information on how to add an NCVAR.