while we're on the topic of CADCAM manufacturing, here's a video of what I do for a living (CNC programmer making airfoils for power generation using this same machine)

https://www.youtube.com/watch?v=__q5IfluE...7EBE2117A00A485

musical tie-in:
because airfoils are resonant bodies, milling them is somewhat like machining a tuning fork. The pitch of a milling cut varies with the speeds and feeds of the tool, combined with the resonant frequency of the workpiece. I've often thought it would make an interesting experiment to program a song by changing the speeds and feeds of a long milling job. I wonder what the machine operator would think if the turbine blade he was machining started playing FUNKY TOWN...

https://www.dropbox.com/sh/ey71h8ep047758h/AAC12jNM0Hz9Q8zsh5iDeqNHa?dl=0