Neck thickness

[Guest Litchfield Custom Gutars]

FWIW I am using a stewmac hot rod. How much thickness is needed on the back of the nexk behind the trussrod route?

[Southpa]

If I remember correctly the slot for those truss rods has to be 7/16" deep. The thinnest part of the neck is just about where your headstock begins. I would think that anything less than 1/8" of final wood thickness in that area on the backside is asking for trouble.

[Guest Litchfield Custom Gutars]

1/8"? thats thin. Wow thanx

[Slaughthammer]

what wood are you using for the neck? 1/8" with mahagoni might get you in trouble...

[Guest Litchfield Custom Gutars]

purpleheart.

[Southpa]

Shouldn't be a problem with that wood! Its one of the densest woods you can find. But you are right about softer woods, my mistake there. If it were mahogany I would say 1/4" would be safer. Density of purpleheart is 0.79 to 0.92 g/cubic cm. whereas mahogany is about half that.

http://www.wood-worker.com/woods/purplehe.htm

[krazyderek]

i think 1/8" of wood under the truss rod is what we all agreed upon the other time this was dicused as well... so if you went with a 3/16" fingerboard your thinest point of the neck would be 12/16"=0.75"~=19.05mm, again that's if you're using a thin fingerboard for a standard 1/4" fingerboard it's 13/16"=0.8125"~=20.63mm or 21mm

[Guest Litchfield Custom Gutars]

Thank you derek. And everyone else.

[jammy]

A mate of mine has an ibanez 540pll, that thing is 17mm at the first fret. It scared me the first time I set it up for him and the neck just flexed in my hands - I would hate to drop it

[Guest Litchfield Custom Gutars]

that neck would be scary to play on.