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Has Anyone Tried a Kevlar Cord Tailpiece Gut?
End tying looks simple and cord is relatively cheap if purchased as bow fishing cord.
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Irv
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December 30, 2017 - 11:41 pm
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I realize that a nylon tailpiece gut is a $2 item, but I never seem to have one around when I need one.  I noticed that kevlar cord is being promoted as an alternative that is stronger than nylon and does not stretch, but if it is purchased as a violin material, the cost is about $10 per tailpiece length (which I assume to be about 3 inches).  Looking around eBay, it looks like you can purchase a 50 foot length of black dyed kevlar cord of a diameter of 1.7 mm to 2 mm for about $12 with shipping under the heading of bow fishing cord.  The 1.7 mm diameter has a rated strength of 400 pounds.  Natural color kevlar (yellow to my eyes) is slightly cheaper and I don't think that the material is particularly UV light sensitive.  Has anyone tried one?

If wisdom were offered me with the proviso that I should keep it shut up and refrain from declaring it, I should refuse.  There’s no delight in owning anything unshared.  —Seneca

I consider any plane that I design a success if it rises high enough to crash.  —RA Heinlein

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MrYikes
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December 31, 2017 - 11:56 am
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I tried but was not happy with the ability to get a perfect measurement achieved. The tying and re-tying became a boorish task. And at the time I was changing tailpieces often, which meant a lot of time spent messing with the cord. Unscrewing a tail cord is just so much easier. Having said that, if I ever finalize a violin setup, I will probably use the kevlar cord.
Some of what is sold as kevlar is not actually kevlar. There is another name (which escapes me right now,,,I'll probably jerk out of sleep at 2am screaming the name)but from what I remember this other material is more slippery and does not hold a knot well.

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Irv
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January 1, 2018 - 9:35 am
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Could the name of the material be Dyneema?

If wisdom were offered me with the proviso that I should keep it shut up and refrain from declaring it, I should refuse.  There’s no delight in owning anything unshared.  —Seneca

I consider any plane that I design a success if it rises high enough to crash.  —RA Heinlein

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MrYikes
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January 1, 2018 - 6:21 pm
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Can't remember.  It's been a couple of years since I've messed with it and it's hard for me now to remember names.  I call the old lady that walks around in this house "hon" just so I won't stumble and call out the wrong name,,,,and she's been here since '72.

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BillyG
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January 2, 2018 - 8:18 am
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roflol @MrYikes -  join the club....

P.S.  Someone told me it's now 2018 - so Happy New Year to you MrYikes !

I seriously recommend not copying my mistakes. D'oh - guntohead.JPG

Please make your own, different mistakes, and help us all learn :-)

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Irv
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January 5, 2018 - 3:46 pm
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I was poking through Amazon and happened to note a Wittner WIT-918411 tailpiece and the photo showed a mechanism by which the gut length could be adjusted on the violin by means of a screw.  This would be ideal using a kevlar cord.  Unfortunately, the price of the tailpiece was about $50 US.  It would be just my economics to use a $50 tailpiece to justify a $0.40 piece of kevlar cord.

If wisdom were offered me with the proviso that I should keep it shut up and refrain from declaring it, I should refuse.  There’s no delight in owning anything unshared.  —Seneca

I consider any plane that I design a success if it rises high enough to crash.  —RA Heinlein

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Fiddlerman
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January 6, 2018 - 9:12 am
Member Since: September 26, 2010
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We have used them on occasion. I haven't seen any in a while though. There is a special knot that our luthiers use for this and they work great. The only negative is that it's hard to shorten the length later after you cut the ends. It's obviously better to test and make sure you have the perfect length before cutting the excess.
Obviously the adjustable tailpiece adjusters are easier to use.

"The richest person is not the one who has the most,
but the one who needs the least."

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