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Innovative Custom and Semi-Custom Electric Guitars

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Torsion Logic Neck Construction

There are two basic styles of Torsion Logic necks: jointed and non-jointed.


The non-jointed type was our default neck for several years. Briefly, the non-jointed neck is continuous from head to heel,

and is made from a 2-1/2" thick blank. The blank must be this size to permit both the angled headstock and the Torsion Logic heel.

The blank is usually laminated with either five alternating layers of contrasting woods or three layers of the same wood.

Occasionally we can find large billets of curly maple with which we can make one-piece non-jointed necks (check out 07-015),

but it's not always available and is significantly more expensive.

5-piece curly maple/jatoba blank

In construction, the truss rod is installed, then we bandsaw a rough profile.

Although the cut-off portion is retained temporarily as a platform for fretting, it is ultimately discarded.

5-piece non-jointed heel



The jointed neck was developed to address two factors: the desirability of carving the main part of the neck from a single plank,

and to significantly reduce the amount of wood wasted.

The only way to achieve an angled headstock was to incorporate a luthier's scarf joint at the nut area.

the finished scarf joint

This method has the added benefit of greatly increasing strength in this critical area

by ensuring that the wood fibers continue to run parallel to the front and back faces.


note the change in grain direction


Single-plank construction also means that the Torsion Logic heel tenon must be carved from a third piece of wood.

finished 5-piece jointed heel

The jointed neck was put through rigorous testing before it was offered for use on customer's guitars, and has proved to be

as strong, and more importantly, fully as resonant as the non-jointed style.

Furthermore, the jointed neck can be made from solid boards (rather than laminated), and generally feels smoother to the fretting hand.



Ultimately, it is up to the individual customer to decide which style of neck is used. Some are more partial to the continuous,

head-to-heel idea, while others want the extra strength of the scarf joint. Some like the look and feel of the laminated neck,

and others prefer the look and feel of one piece of wood from the nut to the heel. We stand behind both designs; both embody

the superior resonant coupling characteristics of the Torsion Logic system.



all images on this website ┬ęClinton S. Dougherty