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Private member DiscussionFolk, Bluegrass, Irish, Old Time Instruments

Full mandolin batch build video on YouTube

Just posted a full build video for the last mandolin batch over on YouTube. Give it a watch folks, its 25 mins long. And there should be a few woodworking tips there for some of you, and some lovely tunes all played on my work.

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Private member DiscussionAcoustic Builds

Nominal Normal Thickness of Barb Thickness for a .022” Tang Wire?

Let me start with this; I'm trying to find the root cause of difficult fret wire installation of two different SM fret wires. I've spent a lot of time gathering dimensions and experimenting with techniques wich could cause the problem. I enlisted the help of a colleague who arrived at a similar poor performance. His solution was to glue the fret ends/ beat the frets in. My "rather" is to find the root cause so I don't have to go thr…

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Private member
Matching the fretwire to the fret slots (and visa-versa) is a huge subject. Dan and I did an entire episode of the Dan and Doug Show just on fret slots. I'll be revisiting the subject of fretwork in…
Private member DiscussionGeneral Business

Fender, Schmender

Since most of us fix or make guitars, we have probably heard something about the cease and desist letters Fender has sent out concerning the Stratocaster. I thought I would offer some thoughts. As always, caveat emptor. There are three basic ways to protect intellectual property under Federal law. Patent, trademark, and copyright. Each protects different things, and has different underlying legal theories. Lets begin with pate…

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There is also a time limit to both Patents and Copyright (and Trademarks, though Trademarks can be renewed). Don't know how long they last in other countries, but Canada is normally 20 years. Copy…
Private member DiscussionDesign and Testing

Node Atlas v1.1.0

Dialled in the Beta, much further. Now at v1.1.0 Echoing Christopher Alexander’s argument in the first half of “Notes on the Synthesis of Form” here. Parametric, Semi-Lattice Structures. Centres within Centres, interacting to form the whole. A living structure. Because of the dimension of time, and feature hierarchy, and methodology we end up with a Centre Oriented Semi-lattice Hyper-graph, or COSH for short. This will be available on the…

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Private member DiscussionJob Postings

Full-time Luthier Position @ Austin Straight Frets

Straight Frets in Austin has an excellent full-time position opening up soon. The job pays by the job, and equates to $70-85K a year for a tech that does: *neck resets *structural repairs *bridge making/reglues *refrets *headstock breaks with splines/airbrush We work on about 1,350 guitars a year (about 28-30 a week) and have had work shipped in from 22 different states at this point. We also teach setup classes on…

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Private member DiscussionAcoustic Builds

Hide Glue Working Time

I'm using hide glue on this 1st build. So far I've glued up the kerfing, back braces, and the top "X" brace. I'm using the 190 grade glue. Working time is short at best. I heated the top "X" brace surfaces (brace & top) with a blow dryer and that seemed to help, a little. How can I get enough working time to glue the top, and then later the back, without having to rush and creating a real mess in the process? Suggestions and reco…

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24 replies
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I make a "hot hut" out of my go-bar deck by draping a large piece of vapor barrier plastic over it. Use clothes pins, or spring clamps to clamp areas shut around it. I then place a small space heate…
Private member DiscussionGeneral Business

Insurance

Hi all, To those of you that work out of your house, how are you insuring your home/business? We are moving house and just had a homeowners policy cancelled due to my home business. Given how easy it is for these companies to deny claims, I want to make sure I do everything on the up and up. I'm in New York, and have Heritage for instruments that come in and out of my shop.

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We ran into similar issues when I was working out of my garage. A lot depends on your state, the carrier, and how much customer traffic you have coming to the house. We've since moved into a retail loc…
Private member DiscussionJob Postings

Full-time luthier — Custom Shop & Production

Rask Guitars — Utah (relocation required) Rask Guitars is a Utah-based custom shop dedicated to building exceptional instruments — primarily high-end acoustics, alongside electric guitars and prototypes. We operate with a small, focused team where craftsmanship isn't just a standard, it's the entire point. We're growing, and we're looking for a skilled, experienced luthier who's ready to plug into a real production environment, contribute…

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Private member DiscussionAcoustic Builds

Back Braces Shape

So the first real "full build" I'm doing is a Stewmac 000 kit. I was wondering about the back brace shape. I'll was planning to taper the ends at the side joint to about 1.5mm. Should I do some scalloping of the braces? Suggestions and comments are welcomed and appreciated. Regards, Gerry Images

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Private member
There's nothing "wrong" with what you have pictured but it lacks some finesse. There are soooo many variables in play to worry about for a first build. If you want to practice some skills in this st…
Private member DiscussionFinish New Builds

Sanding methods/mechanism routine

Good evening folks, lately I'm experiencing some sanding methods/mechanism frustration. Can't explain better than look like I'm regressing at doing it. The only thing changed in my building routine is that I'm currently using a CNC (I haven't used one for some years) for both bodies and necks. I have no problems with necks, but sanding bodies has become incredibly frustrating, specially around the edges. While I keep improving my c…

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Private member DiscussionFinish New Builds

Tiny Bubbles

Here You'll seehere pin tip sized bubbles. Nitro finish. It got hot in a case. They'll need a light amagolmater mixture applied to melt'm back into the surface. Im looking for advice on the recipe for said amagolmater....Straight retarder? Im not sure if Id need lacquer in the mix that I apply....Thank you! Colin O'Brien LittleCreek Instrument Repair, Nashville. Images

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are those blisters from the heat? Have any of them popped?
Private member DiscussionGeneral Business

Buying Bone Blanks from S.F. International

Hey all, Just wanting to get an idea of what peoples experience has been like buying bone blanks from S.F. International. I placed an order back in late February, close to $500 AUD, and 3 months on, they are still yet to ship to me in Australia. I was told over a month ago that the order was ready to ship and since then, I keep getting told "Dispatch tomorrow". Anyone else have this experience and still got their order?

13 replies
13 replies
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I bought 400 nut and saddle blanks (camel bone) in 2025. Shipping took awhile but i was in no rush. I didn't think the quality was great. Most were bent/curved, wet, with fault lines. I'd rather pay twi…
Private member DiscussionJob Postings

Employment opportunity at Elderly Instruments

Hello all- We have a job opening in the repair shop here at elderly. Looking for someone professionally trained, with 5+ years of experience preferred, but any and all are welcome to apply. Send resumes and inquiries to [email withheld] Tell him you saw the post on the looth group!

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Sent an email!
Private member DiscussionElectric Builds

alternative to mixol?

Hey guys, does anybody know of a good alternative to mixol? I use it in lacquer for mixing opaque colors and it's great but I've been on the lookout for something more affordable and haven't had much luck. Wondering if anybody here knows of anything. Thanks!

2 replies
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Ian Davlin
It used to be the colortone pigments from stewmac that were quite good and didn't require a ton of material to go to opaque. It seems like we are left with just Mixol for guitar grade pigments that wo…
Private member DiscussionCustomer Relations

What do you do when you get a knock off guitar on your bench?

I have a "fender", which I believe is a knock off, in my shop. I didn't immediately catch that it was a fake, but as I worked on it it's become fairly undeniable, in my opinion. For the neck — the fretboard is made from two pieces of rosewood, the headstock decal doesn't look right, the truss rod is metric, the tuners don't look like a MIA Fender, and there's no walnut plug on the truss access. The model name being wrong is suspicio…

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3 replies
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Ian Davlin
My opinion is to avoid mission creep. Repairing instruments and authenticating instruments are two different jobs. Only one of these jobs are you actually being paid for. I've never experienced any up…
Private member DiscussionDesign and Testing

AI hallucinations-Claude fessing up

I am working on an article to post here on the Looth Group regarding the history, and problems, with scale temperament. In the process, I asked Claude about a particular point, and Claude gave me a quote that perfectly encapsulated the concept I was exploring. I asked Claude to provide the specific citation for the quote. Claude fessed up to outright misrepresentation. Probably nothing new here, but I thought it was worth sharing.…

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There's a really cool book, not specifically about intonation but dives deeply into it, called Harmonic Experience by W.A Mathieu. Highly recommended. Cheapish used.
Private member DiscussionFinish New Builds

Wipe on poly over Z-Poxy?

Hello — I would like to finish a mahogany electric neck and body with wipe on poly (probably Minwax satin) and would like to pore fill with Z-Poxy. I can’t find a definitive word on their compatibility. - Can I just wipe on the poly coats after block sanding the 2-3 Z-Poxy coats? - Should the Z-Poxy be sanded all the way back to wood or just smoothed/flattened? - Is a coat of unwaxed shellac between the Z-Poxy and the wipe in…

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Private member
I personally like to do a washout of shellac just in case.
Private member DiscussionAcoustic Builds

Replicating Kurt Cobains 59 Martin - bad idea?!

Greetings fellow Looths! I recently received a request from a customer to replicate Kurt Cobains 59 Martin, starting with a Sigma DM3. I have pasted the customers email to me below. While I have been a looth hobbyist for many years, I just recently opened my official business, Finger Lakes Guitar Works, and am just getting off the ground and a good flow of repair work is already coming in. While I feel 100% confident in my abilities to…

2 replies
2 replies
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Private member
Seems kinda annoying to me. The guy wants to spend a ton of money building a replica of a guitar but he's going to not use a guitar by the actual brand to do it? I'm going to go with this is going t…