This guitar neckuses Carbon fiber as an exoskeleton with a lightweight wood core, such aswillow or basswood as a compression medium for the core. The finalouter face of the neck is a thin 1/32” veneer of hard wood. Therecan be as much as 200 pounds of pull on a guitar neck.

I've attached my design

Myquestion is do I have the design right? Where can it be improved?

Only one point:  You will need at least some of the CF reinforcement to run straight through the neck, on the bottom side also, where you have tour "t-piece" for the guitar body
The strings on the top will try to stretch the underside of the neck and compress the upper side. The upper side with the fretboard, is already much stronger than the underside.

I would certainly use at least a few layers of unidirectional CF going all the way through on the underside of the neck.

The stiffer the neck is, the longer the sustain is and it will also produce a "dryer" sound.

"Sapere Aude"... Dare to KNOW!

The written word is the only truly efficient vehicle for transmitting a complex concept from mind to mind...

103% of all people do not understand statistics...

Do not adjust our mind, theres a fault in reality :-)

I'm also using a 1 1/8” carbon fiber square tube as the neck post.

This is the fiber that I am using with the West system epoxy.

Thanks a bunch.

This dry twill cloth uses AksaA-42 12k carbon fiber (click link for technical data)and is often used in aerospace and automotive applications. Thisparticular woven fabric is the thickest we offer and is usedcommonly as a very efficient and affordable means for building upthickness in parts. A single ply of this material is roughlyequivalent to using 3 plies of the lighter weight twill (part# 13005-D) and as such may be a perfect alternative to yourproject.

Fiber Properties - Non Composite 100% fibervolume

• Tensile Strength -   512 ksi / 3,530 MPa    

     

• Tensile Modulus -   33.4 Msi / 230 GPa    

     
• Density - 0.064 lbs/in^3 / 1.76 g/cm^3    
  
  

Fiber Properties - Composite normalized to60% fiber volume with Toray 250F resin

• Tensile Strength -   270 ksi / 1,860 MPa    

     
• Tensile Modulus - 20.0 Msi / 135 GPa
  
  

Howwould oven curing affect the stability of this layup?

Myultimate goal is to build a light weight neck, that stable enoughthat a truss rod is unnecessary.