The jig and using it

Here is the body placed inside the new jig I made. I will be using this to bevel the face at the neck joint to 4.5 degrees.

I use the angle gauge to transfer the exact angle to the jig.

Here I use the pre-set angle on the gauge the set  the angle on the jig.

Now you can see how this is going to work.

Now I have to move the top guide down on the jig to complete.

After beveling the face of the body I now have the transpose the angle to the bottom the neck pocket (mortise). I do this by carefully using the router on the bevel created. Here I have made the first pass and you can see I still need to be a little deeper.

As you can see here I am very close now. One more slight adjustment and we are done.