Designing
an instrument from a clean sheet of paper allows the opportunity
to re-examine certain
elements of that design. In this section you will find information
about those kinds of advancements in shop tooling and guitar construction
used here in the Eichelbaum shop every day. You will not only
see photos of construction methods, but also in-depth descriptions
of design concepts and techniques. Please check back often, as
this section will be updated frequently.
The
Bolt-on Neck Joint
Traditional
dovetail neck joints are more than adequate when properly executed.
However, I find that employing a full 3/4" slip-fit mortise
and tenon joint offers significant advantages. First, this method
enhances the sound quality of the guitar. Because I use two mechanical
fasteners to pull the heel snugly into the neckblock and guitar
sides, more direct contact in this area relates to a greater integrity
of sound transmission from the neck to the body. Second, this
method improves the accuracy of manufacture. Neck angles can be
precisely set without disturbing the strength of the joint, since
no glue surfaces are affected by changes. Third, this method promotes
ease of removal. Should the neck require removal, all that is
needed is to remove the fasteners and lift the fingerboard from
the soundboard in the traditional way. This can be accomplished
in less than fifteen minutes with no worry of damage from "steaming"
the joint apart.