How do I figure the neck angle?

[Milnoque]

I'm designing a guitar having been inspired by the design thread that's been running. I'm trying to figure the neck angle required.

Scale length 25.5"
bridge height .5" with the saddles seated at the base
Frets have a .043 crown

I'm figuring the fingerboard will be 1/4" thick and will not be elevated at the body.

For design purposes how much clearance should I allow at the 12th fret to leave myself some adjustability?

I'm figuring the nut slot is cut to .045

I don't know what other information is needed

 

[muttley600]

The best and easiest way is always to sketch out the known dimensions on paper at full scale. In practice you set the neck angle when you joint the neck and body.

If you do want to work out the neck angle numerically then you need to know a few other factors, such as the intended action, the type of top, carved or flat, the height the neck will sit above the body, the length from the bottom of the bridge to the nut and the exact position of the top of the nut, the exact position of the pivot point. From that it is simply a matter of triangulation.

Sketch it on paper.

Always start with the string length and then add around it.