CNC Project - Guitar Neck (and the rest if I can get away with it)

[Washout]

I am watching
saw some guitar neck jig on website but for the life of me don't know how it works.
I thought(know nothing about guitars) the headset(or whatever it's called) was tied into the guitar body with a steel rod and this prevented the string tension from bending the neck, and i have heard nut mentioned.
Videos are GR8
Mike

Thanks Mike,

The thing you are describing is the truss rod - its an adjustable steel bow that fits inside the neck and compensates for the string tension. One of the neck videos has me installing them in the Jaguars (the one where I glue the fingerboards to the main neck body iirc).

The nut is the bone or plastic piece at the top end of the neck and holds the strings in place at that point - I will have a video showing me making these once all the paint work is finished.