Here is a video of a tricky part to machine: the negative angle of the Demon beaver tail.
The video shows the kuka CAM accelerated simulation, then the real life machining.

<iframe src="https://player.vimeo.com/video/298833959" width="640" height="1138" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
<p><a href="https://vimeo.com/298833959">Demon beaver tail negative milling</a> from <a href="https://vimeo.com/user3168634">Oli Ni</a> on <a href="https://vimeo.com">Vimeo</a>.</p>