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Old 10-29-2013, 10:49 AM
Jeffkos Jeffkos is offline
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Location: Portland, OR
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Default Two Ergonomic Acoustics from KOZM Guitars

Greetings Guitar Gals and Guys,

I recently finished completing 2 very custom acoustic guitars for a client with a strong interest in ergonomics.

A quick bit of background for those who don’t know about me and KOZM Guitars:
I call my process “Digital Lutherie”, because I take advantage of digital computers and computer controlled manufacturing techniques.
I design my guitars with modern, 3D computer aided design (CAD) programs, and I sculpt and machine my necks and bodies with a computer controlled router (CNC).

All of the sanding, fitting, finishing, assembling and final tweaking is done the old fashioned way.

The following two guitars were co-designed by my client and me, through an iterative process.
His main interest (at the time) was ergonomics – i.e., trying to improve upon the way the guitar interfaces with the human body.
I.e., designing a guitar primarily from the perspective of improved ergonomics, rather than the perspective of tradition and “because that’s the way it's always been done”.

To a large degree, these two guitars are “exploratory prototypes”. They’re both very similar, except for the arrangement of sound holes.
As to be expected, they both have their own unique sound.

First, an image from the computer screen illustrating how the guitar was intended to look.

This is the KOZM "Kiak 3"

Actual photos of the KOZM Kiak 1

A look at the neck joint.

KOZM Kiak 3

Mahogany back.

Finally, the guitars are designed to be played in two positions. This is the more conventional position.

This is the more ergonomic position.

Let me know if you have any questions or comments.
I hope to have a video ready in a few more days.

Thanks for taking a look!

Jeff Kosmoski
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Old 10-29-2013, 11:15 AM
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Larry Pattis Larry Pattis is offline
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Looks like something Adrian Legg would be very interested in...

...and it looks like a cool, thinking-outside-the-box (no pun) project.

I like to have my guitar neck tilted even more upright than in the second depiction...but this might prove very helpful to right person(s).

I'll be watching for updates (and the video you mentioned!), and thanks for sharing your innovative work.

EDIT: Jeff, I just saw that you're located in Portland...I'll be up mid-day on Wed. Nov. 13th for a Doc. appt., and was wanting to get together w/Bill Douglas (Billy Boy, AGF)...perhaps we'll try to create a get-together.
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Old 10-29-2013, 11:25 AM
Pat Foster Pat Foster is offline
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I saw Jeff at the Portland show this past April. Very interesting, very nice guitars!

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Old 10-29-2013, 12:35 PM
s2y s2y is offline
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Pretty cool.
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Old 10-30-2013, 02:12 AM
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matthewpartrick matthewpartrick is offline
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Does the 2nd one sound gypsy jazz-ish? Seems like narrow or smaller sound holes might reproduce Selmer-Maccaferri type sound. Very cool ideas.
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Old 10-30-2013, 11:37 AM
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J.R. Rogers J.R. Rogers is offline
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Thanks for sharing those! The second one is especially interesting with the unique soundhole designs.

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cad, cnc, ergonomic, kozm

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