Composite Guitar Neck, I need Help with the design.


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Eldon H
Eldon H
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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?


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3D Neck Post..pdf (622 views, 91.00 KB)
12th fret profile..pdf (571 views, 79.00 KB)
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Eldon H
Eldon H
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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



Edited 11 Years Ago by Eldon H
Eldon H
Eldon H
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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.


GO

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