I'm planning for my second build. I used bone for the nut and saddle of my tin uke, but I have another idea for this one.

Following up on a "curb alert" on Craigslist, I picked up some wooden panels decorated with pieces of shell. They make a Japanese-style image, but I really don't care about that. I want to use the shell itself for inlays, etc.

It occurred to me that I could possibly use some pieces of shell on-edge as nuts and saddles. Has anyone tried this? Is it too brittle? Could I maybe laminate several pieces together with epoxy and make it stronger?

Views: 1226

Reply to This

Replies to This Discussion

Karl,

 

I'm speaking to you as a biologist and geologist on this one.

 

Mother of pearl, or MOP, is the inner shell lining of oysters, some clams, and abalone. It is composed of calcium carbonate, CaCO3, and is both quite soft, being a 3 on Moh's hardness scale (just above talc and gypsum), and quite brittle on edge because it is deposited in very thin layers. You can easily cut it with a not very sharp knife, so imagine what a steel string under tension, being played daily, will do to it. That is the reason it is used for accents, decoration and inlays, because it is very soft and workable, and has a lovely mottled shine, and not for anything load-bearing. I wouldn't try to use it for a nut or saddle, even epoxying several pieces together.

That's exactly the kind of answer I was hoping for. Let's hear it for science!

I should have realized that it would be the same material as oyster shell, which I know is essentially the same as chalk. Thank you for clearing it up. Guess I'll be using it as decorative material only!

I'm inclined to go with Oily's science on this one but you might be interested to know that 2 people have reviewed the product from stewmac. I don't know the actual composite of their material but it has been done to some extent. 

http://www.stewmac.com/shop/Nuts,_saddles/String_nuts/Mother-of-pea...

Ben,

Thanks! There are indeed suppliers of MOP nuts and saddles, including Stew-Mac, as you've noted. Seems like most of it is coming from Vietnam and other Asian countries nowadays. MOP was used for nuts and saddles primarily on 1920s-era, high-dollar, top-of-the-line, "fancy" Gibson banjos and mandolins, and occasionally on guitars, because of its ability to take a high polish. I've said I think it's too brittle end on, especially for a saddle; another consideration is that it seems to be 2-3 times the cost of regular old bone. There is a way to harden it up some, by exposing it to high heat, which can cause partial recrystallization of the carbonate; maybe that's what's being done by the modern suppliers? So, obviously, people are using it, probably even with success. I personally wouldn't do it.

Anyhoo, the lutherie forums I've looked at all seem to favor bone, for longevity, durability and workability. And pre-slotted bone blanks are pretty cheap, around $3-5 per on eBay, and around $5 from the various luthier supply houses. Of course, if you wanted to, you could go to the local butcher's, get you a cow leg bone for next to nothing, bleach it, degrease it, dry it, and cut it up into a fair number of saddle and nut blanks.

Actually, now that I'm thinking about it more, if Karl has enough material, there's really nothing to stop him from at least trying one, aside from me giving him scientific reasons why I personally wouldn't. These are CBGs, often made from found materials, so why not give it a whack? Worst that can happen is you have to replace a nut or saddle with bone. Or a good old bolt.

Geologists are also well known for appearing wishy-washy, because we are trained to hold multiple hypotheses and consider outcomes probabilistically, even in the face of what to most people would appear to be rock solid data. Makes us almost as frustrating to deal with as lawyers.

If it is a uke with nylon strings then the tension should be fairly low compared with a steel string guitar.  Could be worth a try.

RSS

The Essential Pages

New to Cigar Box Nation? How to Play Cigar Box GuitarsFree Plans & How to Build Cigar Box GuitarsCigar Box Guitar Building Basics

Site Sponsor

Recommended Links & Resources


Forum

crossover guitar.

Started by Timothy Hunter in Other stuff - off topic, fun stuff, whatever. Last reply by Timothy Hunter Mar 21. 11 Replies

Tune up songs

Started by Ghostbuttons in Building Secrets, Tips, Advice, Discussion. Last reply by Timothy Hunter Mar 9. 5 Replies

Duel output jacks

Started by Justin Stanchfield in Building Secrets, Tips, Advice, Discussion. Last reply by Taffy Evans Mar 8. 6 Replies

How to Get Your Own Music on Spotify

Started by Cigar Box Nation in Feature Articles. Last reply by Southern Ray Feb 21. 2 Replies

CB Bass Guitar

Started by Mi Rankin in Building Secrets, Tips, Advice, Discussion. Last reply by Justin Stanchfield Jan 27. 5 Replies

Latest Activity

A.D.EKER commented on Dar Stellabotta's video
Thumbnail

A Cigar Box Guitar Six Stringer Built by Louie Lamanna

"i See Your ready to Blow away the GRAND STADIUM ! tree strings more of DAR DELIGHT !! Shine Girl !…"
2 hours ago
A.D.EKER commented on A.D.EKER's video
Thumbnail

Im Troubled (Tribute) Mc K Morganfield by BCB - A.D .Eker 2024.

"Thank you for the kind comments Doug! Glad you liked the Picture !"
3 hours ago
BrianQ. commented on Dar Stellabotta's video
7 hours ago
BrianQ. liked Dar Stellabotta's video
7 hours ago
Southern Ray commented on Southern Ray's photo
Thumbnail

Project Punch!

" Thank ya again Keith!"
9 hours ago
Southern Ray commented on Southern Ray's photo
Thumbnail

Punch Project!

" Thank Ya Keith!"
9 hours ago
Doug Thorsvik commented on AGP #'s photo
Thumbnail

AGP #527 - ''Led-Zep 2''

"This build really strung you along Alan! Reminded me of all my fishing line experiments; a lot of…"
11 hours ago
Doug Thorsvik commented on A.D.EKER's video
Thumbnail

Im Troubled (Tribute) Mc K Morganfield by BCB - A.D .Eker 2024.

"Diggin’ the slow blues. I like that last pic Andries! Look at all those cool guitars. Yeah!!!"
11 hours ago
Dar Stellabotta posted a video

A Cigar Box Guitar Six Stringer Built by Louie Lamanna

This video is the unboxing and the demonstration of a beautiful, six stringer built by Louie Lamanna. Join Louie and I June 15 at the second annual Pittsburg...
12 hours ago
Doug Thorsvik commented on Doug Thorsvik's video
Thumbnail

Hail the Resurrection Day: 2-String Violin Chugger Cigar Box Guitar

"Happy Easter to you too Andries! The passion is definitely in full swing. Turns out I’m…"
13 hours ago
A.D.EKER commented on Doug Thorsvik's video
Thumbnail

Hail the Resurrection Day: 2-String Violin Chugger Cigar Box Guitar

"Happy Easter Doug ! the Passion is in full swing !"
13 hours ago
A.D.EKER commented on Ricky D's photo
13 hours ago

Music

© 2024   Created by Ben "C. B. Gitty" Baker.   Powered by

Badges  |  Report an Issue  |  Terms of Service

\uastyle>\ud/** Scrollup **/\ud.scrollup {\ud background: url("https://storage.ning.com/topology/rest/1.0/file/get/963882636?profile=original") no-repeat scroll 0 0 transparent;\ud bottom: 25px;\ud display: inline !important;\ud height: 40px;\ud opacity: 0.3 !important;\ud position: fixed;\ud right: 30px;\ud text-indent: -9999px;\ud width: 40px;\ud z-index: 999;\ud}\ud.scrollup:hover {\ud opacity:0.99!important;\ud}\ud \uascript type="text/javascript">\ud x$(document).ready(function(){\ud x$(window).scroll(function(){\ud if (x$(this).scrollTop() > 100) {\ud x$('.scrollup').fadeIn();\ud } else {\ud x$('.scrollup').fadeOut();\ud }\ud });\ud x$('.scrollup').click(function(){\ud x$("html, body").animate({ scrollTop: 0 }, 600);\ud return false;\ud });\ud });\ud \ua!-- End Scroll Up -->