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Private member DiscussionAcoustic Repair

Testing binding glue peel strengths

I did some testing of peel strength for ABS plastic/unfinished wood bonds using various glues. I found some interesting results and am continuing to test with additional glues and an improved method. TL;DR: Non-aqueous glues as a class outperformed the aqueous glues Testors 3505 and thin cyanoacrylate provided the strongest non-aqueous glue bonds Among the nontoxic water cleanup glues, Canopy 560 glue exhibited a significantly higher mean p…

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Private member DiscussionDiscussions

broken truss rod Repair

Hi, I just saw the Trussrod repair/ new fretboard post by Dan Erlewine and Rodrigo Gomes. I really liked it, especially the idea of carving the fretboard with the table saw! I could not comment on the article. I am sure there was a reason for replacing the whole fingerboard in their case. I wanted to document an alternative method that I tried two weeks ago with sucess. I did not invent it though, i have seen it somewhere in the interne…

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Great work!
Private member DiscussionDiscussions

Collapsing Soundhole — Mid 60’s Epiphone Texan

A local shop I do repairs for sent me this photo of a Texan where the neck is collapsing into the soundhole. I’ve repaired and cleated these kind of cracks before they get this bad, but have never dealt with such misalignment. Looking for advice on how I’d go about realigning the cracks and whether it’s achievable. I’d imaging the neck would have to come off and I’d have to place some sort of jack inside the guitar from tail block to nec…

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Alex, that looks like a tough customer given the amount of misalignment. If I wasn't sure about the neck pocket being a dovetail joint I would try something like this first - https://loothgroup.com/lo…
Private member DiscussionElectric Repair

Feedback on Jaguar Nut Slot/Channel Repair

Hey guys, I’d love to get some suggestions on how to finish this repair aesthetically. The customer brought it in because this piece had split while trying to remove the saddle using a rubber mallet. My main concern is that the joint between the two pieces of wood is still visible. I was thinking of doing what I’ve always done: using wood dust mixed with CA glue or Titebond. But I was wondering if you guys use a different method that migh…

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Hey Ian, it looks much better with the Fill and Finish CA! I still need to sand a few areas a little more and apply some gloss lacquer, but I think it’s going to turn out great! Thanks so much. It’s t…
Private member DiscussionElectric Repair

feedback on Les Paul Headstock repair

I need some suggestions from the many great repair senseis out there.The customer is fine with a structural repair and not concerned about making it invisible. I told him you will see anything I do. He was fine with that and has a budget of between $700-1000. It's a clean break. nothing missing, It closes tightly.. I was thinking either 1) the generic double splines one on either side of truss rod and touchup as best I can. Or 2) the ab…

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With a break like this with plenty of surface area, I would just glue it without any additional supports. My glue of choice is hot hide glue, but there will be lots of opinions on that and many option…
Peter Morande DiscussionShop Organisation

Returning to Instrument Building Soon.

Hi All, I wanted to check in with folks in the industry and ask for some advice. I have been on a building Hiatus for a number of years now (Hand Injury, Medical Issues). Things have gotten much better, and I am fully able and capable of building once again. The 2nd biggest hurdle I have had was a lack of opportunity for shop spaces to build. I now have a viable workspace and full use of my hands once again to build. The problem is that, o…

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Hi Peter and buona fortuna on your re-start. I would look into a thickness sander, drill press and small bandsaw. And dust collection! A good router that you can also mount on a router table. A laminat…
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Custom Fingerboard Slotting/Milling in Canada?

Looking to get a custom fingerboard slotted, radiused and cut for block inlays, preferably in Canada. Any leads much appreciated! 🙏

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Cascadia in BC will do customized fretboards. They haven't carried much stock lately but it's maybe worth an email. If you go to any blank they're selling, at the bottom you'll see they offer custom C…
Private member DiscussionElectric Repair

Sad Old '71 Hagstrom Swede

Greetings Wise Elders and fellow seekers of the Looth Group! I hope you're all keeping well. I humbly beseech thee for thine sage wisdom and experience. I purchased a 1971 Hagstrom Swede. This guitar was basically put in a case and then forgotten about for a few decades. I felt sorry for the old man and have taken it in as a stray / project. I would like to get it playing again. There are many scars on this guitar, I have looked for as…

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Thanks so much Ian, much to consider. Your tip about the white glue is something I didn't consider at all.
Private member DiscussionElectric Repair

74 Les Paul Broken Headstock

Guitar fell straight down on the headstock when it was hanging up at the refinishers. Shit really does happen! Grain is pretty much shattered around the adjustment nut. Thinking I’ll replace the entire broken area with a completely new piece of mahogany. Scarf it in between the volute and 3rd fret. Probably even a 3 piece lamination to mimic the neck. This one was not the clients fault so the expectations for looking close to original a…

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In the past I’ve accomplished this using a large japanese saw and an angled jig for the majority of the cut, and then smaller japanese saws and chisels for interior of the cut. Sandpaper pulls for ref…
Private member DiscussionGeneral

Is an online course for guitar repair a good way to go?

Hi all. I've just joined the group....I'm pretty certain what I'm asking here has already been covered somewhere but not really sure at the moment how to search chat topics. If so, and it's easier to just point me to an older chat...please do so! I'm in my 50s, been playing guitar for as long as I can remember. I'm a trained wood-worker (amongst other things) and am looking to start a new journey into guitar repairs. At my age I can't a…

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I am not a repair guy but you can also just take a guitar making class. It's not the same thing but the inform each other. I would say like 75% of Canadian luthiers have passed through Sergei Dejong…

GlueBoost vs Nitro drop fill

*Photo added* Ding repair on spruce top, 2015 Collings 0002HE #23701. What are y’all reaching for when repairing dents in nitro? GlueBoost fill & finish or drop filling with nitrocellulose? This is a well-used guitar; not pristine and the owner has reasonable expectations that the repair will not be “like it never happened” Bonus question: If there is bare wood, should I seal it with shellac to preserve the color before proceeding to fil…

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The coating on that 000 is a mixture of a UV poly base and nitro top coats. It seems that many of the deeper spots could benefit from steam applications. I use a paper towel, folded into four layers a…
Private member DiscussionGeneral

70's Tele Neck w/ truss rod issues and a bulge behind first fret

I've got a client with a '72 Tele. It needs a re-fret, but the truss rod isn't functioning. In fact it's backed out of the channel significantly, and there's a bulge in the neck underneath the first fret which suggests to me there's something going on with the truss rod anchor. The puzzling thing is the wood in the neck has bulged, but the skunk stripe and the finish don't appear to be disturbed at all. I'm thinking I'll probably hav…

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The only other potential thought I have outside of maestro's James and Ian is, while it's hard to know via photos; has the neck been refinished? I'm seeing some sheen in the worn areas which I wouldn…
Private member DiscussionAcoustic Builds

Epoxy Pore Fill question

When using epoxy (either silvertip or epoxy), I try to sand back the epoxy on the surface and only leave it in the pores. I'll start the process with sanding to 320g or so then using an air compressor to blow out the pores. The challenge that I run into is opening new pores in the process. I use a block of wood and long strokes in an attempt to avoid uneven sanding. Ultimately I'll get a good pore fill but I tend to apply several coats…

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Ian Davlin
Are you having a hard time seeing when you have sanded just down to the wood ? If so, you might try a quick naphtha wipe. It should show off where the surface is still covered with epoxy. Due to the f…