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FDP Forum / Guitar Mods, Repairs, and Projects / Rubber Grommet to Deaden Afterlengths

Te 52

Laws of Physics

strictly enforced
Feb 1st, 2019 03:56 PM   Edit   Profile  

Put a new bridge on a Gretsch and was having some annoying ringing of the afterlength of the G string between the bridge and the Bigsby tailpiece.

I came up with the idea of using a rubber grommet between the G and D strings to deaden them, and it worked like a charm. Tried a smaller size at the headstock of a Tele and it worked there too.

Turns out I'm not the first to think of this, Elderly sells them as "Harmonic Suppression Grommets" for mandolins.

I like it because it's effective, cheap, installs in seconds and transfers easily when you change strings. Much easier than foam rubber or sponge under the strings, weaving a felt strip between the strings, crimping a split shot fishing weight to the string, and the many other solutions out there that I've heard of.

These grommets are usually used to protect wires or soft tubing that pass through a hole in sheet metal. They're available in many sizes at any good hardware store.

Something to put in your Tips & Tricks file.

Plus you get to think up appropriate pseudo-scientific gobbledygook explanations for when people ask you what that thing is ;-)

pix -- click on each for larger size

(This message was last edited by Te 52 at 06:00 PM, Feb 1st, 2019)

Peegoo
Contributing Member
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Just beyond Mars

there's a world of fools
Feb 1st, 2019 10:09 PM   Edit   Profile  

I've been using these for years.

The problem with them is if you break a string, the grommet pops out and goes bouncing down the highway like a little tire (it happened to me)

So I weave a short length of leather lacing through them to retain them if a string pops.

Here they are on a

Gretsch New Yorker archtop.

Mick Reid
Contributing Member
*****

Australia

American-made in Oz!!
Feb 1st, 2019 11:33 PM   Edit   Profile  

Hah! You guys are clever buggers.

If I had known or thought of this trick, I might still own the Schecter C1 Custom that had the dreaded "post-bridge string ring".

Well... maybe not.

;^)


TonyMan
Contributing Member
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Lisle, IL USA

That's what she said!
Feb 15th, 2019 10:04 AM   Edit   Profile  

Neat idea. I have had this issue in the past and didn’t realize how easy it could be to fix.

Stratmanx
Contributing Member
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Memphis, TN

Feb 15th, 2019 10:07 AM   Edit   Profile  

That's a great idea !

And you can find grommets at Lowes and Home Despot all day long.

Do you recall the size you used ?

I'll stock up n the way home tonight.

(This message was last edited by Stratmanx at 12:48 PM, Feb 15th, 2019)

Leftee
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VA

Toxic Humility
Feb 15th, 2019 11:31 AM   Edit   Profile  

Mick called you guys buggers.

Glad I wasn’t a part of that. :-P

Peegoo
Contributing Member
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Just beyond Mars

there's a world of fools
Feb 15th, 2019 12:07 PM   Edit   Profile  

The size on the package can be a bit misleading because there are different shapes of grommet and the aspect ratio can be quite different. Some have a small inside diameter (ID) and large outside diameter (OD). Some have a large ID and small OD.

The best approach is to look at the grommet on edge so you can see down into the grooves between the flanges. The ideal diameter of the groove is 3/8" or 10mm. That will allow the grommet to gently press against the two strings you wedge it between. If the package shows the "panel hole" fit, look for that. It's the hole size the grommet is designed to fit.

A note of warning: if you use these on a nitro-finished headstock to prevent ringing of strings behind the nut, be dang sure the grommet does not contact the finish. It will melt the nitro if it remains in contact.

Edited to add a pic:

I drew y'all a pitcher.

(This message was last edited by Peegoo at 02:29 PM, Feb 15th, 2019)

Stratmanx
Contributing Member
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Memphis, TN

Feb 15th, 2019 03:20 PM   Edit   Profile  

Thanks Geno, that's perfect !

Mick Reid
Contributing Member
*****

Australia

American-made in Oz!!
Feb 15th, 2019 03:55 PM   Edit   Profile  

"Mick called you guys buggers.

Glad I wasn’t a part of that. :-P"


There's a big difference between a "bugger" and a "buggerer".

That's as far as I'm prepared to go on the subject.


Cal-Woody

USA/California

Why do I keep fixing things that work?
Feb 15th, 2019 04:00 PM   Edit   Profile  

Sometimes you are and sometimes you're snot! Haha

Stratmanx
Contributing Member
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Memphis, TN

Feb 15th, 2019 05:11 PM   Edit   Profile  

Here's what I picked up on the way home at Lowes.

9/32 x 1/2 x 1/4 x 3/8

Lowes - Isle 16 Bin 10

Stratmanx
Contributing Member
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Memphis, TN

Feb 15th, 2019 05:12 PM   Edit   Profile  

.

Grommets installed

Achase4u
Contributing Member
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U.S. - Virginia

Feb 15th, 2019 08:51 PM   Edit   Profile  

Oh interesting. I have a bunch of those for the hole in the p90 baseplate for lead wires. Maybe I'll try it.

Peegoo
Contributing Member
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Just beyond Mars

there's a world of fools
Feb 16th, 2019 06:45 AM   Edit   Profile  

Them's the ones!

The P90 size is probably too small.

Achase4u
Contributing Member
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U.S. - Virginia

Feb 16th, 2019 12:01 PM   Edit   Profile  

I bet so, now that I think of it. Just need the larger size. Come to think of it, my ex was real noted for sayin' the same thing. Hm.

Peegoo
Contributing Member
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Just beyond Mars

there's a world of fools
Feb 16th, 2019 12:04 PM   Edit   Profile  

TMI!

WOOT!

Te 52

Laws of Physics

strictly enforced
Feb 17th, 2019 10:43 AM   Edit   Profile  

The nominal size listed for these grommets is usually the size hole in the sheet metal they're designed to go into.

For application at the headstock, grommets designed for a 1/4" diameter hole work well. For application at the tailpiece, 3/8" size usually works. If they squish a little and become elliptical in shape, so much the better.

Achase4u
Contributing Member
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U.S. - Virginia

Feb 17th, 2019 02:21 PM   Edit   Profile  

Excellent. I really need those for recording. Otherwise you can spend a significant amount of time chasing down noises.

I actually think the tie-through Peegoo uses makes it more aesthetically pleasing, too.

Achase4u
Contributing Member
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U.S. - Virginia

Feb 23rd, 2019 09:24 PM   Edit   Profile  

By the way - the little ones for p90 are perfect for my mandolin.

FDP Forum / Guitar Mods, Repairs, and Projects / Rubber Grommet to Deaden Afterlengths




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