Worknc Tutorial Here

In the toolpath parameters, use the Holder Avoidance option to allow the software to tilt the tool (in 5-axis) to avoid collisions.

WorkNC is a powerful CAD/CAM software designed to generate toolpaths for CNC machines automatically. Its main strength lies in its ability to automatically detect geometry and apply the most efficient machining strategy, reducing programming time significantly. Key features include: Minimizes manual intervention. worknc tutorial

Imagine a deep cavity with a lip. A 3-axis tool can't reach it. In the toolpath parameters, use the Holder Avoidance