Automation is not all about data and features, though. Many CAM systems have sophisticated automation integrated into the software that analyzes the part geometry.

This is especially important to moldmakers since molds are composed of a mixture of complex surfaces and standard features that must be machined using different techniques. Plus, different surface areas are typically machined in a progression of steps using a variety of roughing, re-roughing and finishing strategies depending on the underlying geometry.
To help programmers ease these constraints, automated CAM systems can intelligently cover openings in a part model so the tool can machine over them as if they aren’t there. This prevents the perilous problem of the tool plunging unexpectedly into an opening while milling along an otherwise smooth surface. The system analyzes the model to automatically generate coverings before the toolpath is calculated. The coverings can then be deleted automatically as soon as the operation is finished or saved for later use by other operations.

  This saves the programmer from manually and tediously creating surfaces to cover areas that will be machined later in the process.
Automatically cover holes on any surface, including holes tilted at an angle
Automatically cover openings that have complex profiles         

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