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Post by slide496 on Sept 30, 2016 0:54:34 GMT
Maybe you should send the tailpiece screwed into whatever model you are making the way you want it for the angle since its important to you, or maybe you are already doing that.
Hard to know whether it will be lasting, but good luck with it.
Lawd lawdy, Harriet
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Post by gaucho on Sept 30, 2016 0:54:52 GMT
It would be great if the laser welding works on the bodies. I love to see them be able to repair a seam without affecting a Duco finish...
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Post by snakehips on Apr 10, 2017 23:06:10 GMT
Hi again,
Well, after a very productive visit to my favourite dental lab, in Glasgow, as amongst other things, they have a laser welder, I managed to charm them into having a go at repairing two broken tailpieces. One is an original, from a 1930 National Style O, and the other is a circa 8yrs old NRP tailpiece, bought as an extra, and was on another vintage National I have.
While the nickel plating has been boiled off / evaporated at the bend in the tailpieces, where the breaks occured, the repairs are otherwise pretty good and solid feeling. I now have the vintage National tailpiece back on my 1930 Style O, and tuned up to pitch, as of lunchtime today. So far, this evening, the tailpiece has kept in tune, holding the string tension. I am very encouraged by the process and hope it may be of use to some of you out there who have broken tailpieces.
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Post by creolian on Apr 10, 2017 23:24:20 GMT
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Post by Deleted on Apr 11, 2017 17:36:57 GMT
Good work - wouldn't fancy that thing near my gob though. TT
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Post by johnmorton on May 20, 2017 15:52:07 GMT
hello folks, I'm new here!
Here's what I do when making tailpieces: I anneal the metal with a torch, make the bend, then anneal again to relieve stress. I use both brass and stainless steel for mine, but this should work for mild steel as well. A tight bend radius exacerbates the stress concentration, and a hard material might fracture immediately when such a bend is attempted.
To repair a broken tailpiece I make a right angle piece to back up the bend, then solder the broken sections to it, hiding the new piece underneath.
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Post by snakehips on May 20, 2017 19:34:17 GMT
Hi again !
To update, I just played in my Style O - and the tailpiece us still going strong and looks solid.
As well as having a laser-welder, the dental lab that did the tailpiece repair have plenty of 3D printers.
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Post by Deleted on May 20, 2017 22:03:20 GMT
I recently broke the leg on my glasses where they screw to the frame and sent them off to a guy in Exeter called Spec Tech who repaired them by laser welding. Very impressive job,the area requiring repair being not much bigger than a pinhead. Don't know if he'd do tailpiece repairs though.
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Post by snakehips on May 20, 2017 22:13:12 GMT
If he can do a tint wee thin, he can do a tailpiece.
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Post by Deleted on May 21, 2017 21:42:54 GMT
I'll tell him you said that Snakey.What does it mean?
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Post by snakehips on May 22, 2017 10:14:40 GMT
Sorry !
Tiny wee thing, not tint wee thing !!
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Post by Deleted on May 22, 2017 11:59:36 GMT
Och a typo--i thought it was a Scottish word I hadn't heard before!
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Post by hokumjim on May 28, 2017 12:45:39 GMT
Hi Richard, I silver soldered a tailpiece back together about 25 years ago and it was fine the last time I saw the guitar. Any good engineer should be able to do this for you.
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Post by snakehips on May 28, 2017 20:01:49 GMT
Laser weld should be much stronger. There is no aolder or different metal in the join - just continuous metal. I'll be bringing my Style O to Dundee to let you see the repaired tailpiece.
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