This is still very much a work in progress, but I want to share where we are with the asymmetric trapezoidal neck design for Thor Mark III. I finally have a prototype in my hands, and so far it’s the best neck I’ve ever tried in terms of feel.
Building on Thor’s original neck
The new profile builds on the original Thor neck: nine layers of laminated Maple, Wenge, and carbon fiber. The result is not only visually striking but also extremely stable, holding up well against changes in temperature and humidity with little need for adjustment. Over the years, the original Thor neck has proven remarkably reliable, and this new iteration carries that same DNA forward.
From concept to prototype
In my earlier post, I outlined the reasoning behind the trapezoidal geometry with an asymmetric taper design. On paper, the idea made sense: better ergonomics, more comfortable thumb placement, and improved reach on the treble side. But sketches and CAD models can only go so far. The real test is always in the hands. Now, I can confirm that the concept translates beautifully into practice. The neck feels natural, fast, and solid all at once. The trapezoidal surfaces give the hand stable reference points without forcing awkward grip adjustments, while the asymmetric taper really does make stretches easier on the higher strings. It’s one of those designs where the subtle geometry disappears under your fingers —everything is exactly where it should be.
Precision and stability
Using our neck duplicator, we can replicate the profile with precision across multiple builds, ensuring consistency from one instrument to the next while allowing us to fine-tune and evolve the shape.
