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Private member DiscussionAcoustic Builds

Neck block for adjustable neck -thoughts on design

I've built a number of classical guitars with an adjustable neck and they seem to gather quite a bit of interest, so i'm currently in the process of looking to refine the design and build. It's quite a simple construction where the neck is held together by string tension and hangs on a pivot. I developed a 3d printed "socket" which acts as the interface between the body and the guitar and allows for some fine tuning of the alignment of t…

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Not really answering your question but I've done a version of the Smallman/Gore joint (I think it's really just Smallman but whatever) on all my guitars (nylon/steel/gypsy). I'm not particularly conc…
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 DiscussionAcoustic Repair

Help needed to pinpoint my mistakes please!

Hi all, I am a newer guitar tech and after dozens of repairs this particular Simon & Patrick Luthier Cedar top SP6 acoustic dreadnought from the 90-ies with a bolt-on maple neck has been an incredible challenge. It came with a maxed out and stuck truss rod with a considerable up bow in the neck, extremely low saddle with barely any string break angle, so it needed a neck reset. Later on I figured out that it also has a pretty dras…

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Ian Davlin
I never got the video.
Private member DiscussionGeneral

Is this hollow body guitar worth fixing - sunken top…

I recently picked up a used custom guitar that the seller said he bought in Vietnam Nam many years ago. I bought it as a wall hanger due to the wonderful Mother of Pearl work, especially on the back. It was very apparent that the top on this instrument was sunken at least 3/8 of an inch, as the weird bridge setup was heightened to the max and there was barely any action height. Once I took it apart and removed the foam inside, I was…

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Ian Davlin
01:53:25 Q9. Vietnamese Hollow Body Worth Fixing? @member your video sir.
Private member DiscussionAcoustic Repair

1975 Yamaha FG200J Neck Reset

Before I hack into the Yamaha, I would like to get the opinion of the experts on a method of steaming the upper end of the guitar and ‘pressing’ the neck down to adjust the angle back to factory. There are several you-tubers that have tried and recommend it. My novice intuition is that even though it may work, wont the steaming of other areas of the body such as upper braces, etc, end up weakening the construction (glue stability) to…

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Thanks for all of the inputs. I am going to order the foam cutter package. I will try to post some pics of the FG200J. In the meantime, I just got done doing a neck reset of a crappy Fender that ha…
Private member DiscussionFolk, Bluegrass, Irish, Old Time Instruments

Local builder mandolin neck reset

A friend of mine gave me his locally built mandolin for a neck reset. The glue in the dovetail has started to fail, and left a large gap at the bottom and a separation from the fingerboard and body. I've taken my brownstone and tried to heat the joint up enough to soften things up, but to no avail. I have no idea what type or where the joint is exactly. There are some indicators that this instrument was built with several flaws in the c…

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Private member DiscussionElectric Builds

What really effects tone?

Ok, I'm a new builder and I've only done solidbody electrics so far, so this question is related to only those. In my opinion, these are the things that have the most impact on tone, listed in order from most influential to least. Have at it! Pickup/electronics, neck joint type, neck construction (including fret size/material), scale length, bridge type, bridge saddle material, tone wood Of course, this only takes into account the guitar.…

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I'm not an expert electric builder but I think I'd go something like pickups 70% Body type (archtop/solidbody/variations thereof) 15% setup 10% vibes 5%
Private member DiscussionNeck Reset Database

1980 Daion 12-string

Model is "The '80". Daion built some nice guitars in the 70's and 80's out of a small shop in Japan. Nice old all mahogany 12 string. It's my instrument so doing a bolt on conversion. Forget about trying to get the neck off one of these (apart from Kung Fu) - neck construction seems to be based on multiple dowels (a bit like some Japanese furniture I suppose)

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Private member DiscussionAcoustic Repair

Breedlove Trussrod Removal/Replacement

Breedlove Roots D/SRH (basically an HD28V) on the bench with a non functional trussrod. Wrench will engage, but the nut just spins and no change in relief in either direction. Pretty sure the nut is stripped at the rod end, but due to the neck block design, there's no way to access it without pulling the neck. Anybody ever replace a trussrod in one of these? The neck is a bolt on, and the fingerboard extension is glued down, so only…

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I've replaced many a truss rod on Taylor's. Same neck bolt design with glued on fingerboard. Only difference is the adjustment is at the peg head. But they can be dug out at the heel and slid out. I t…
Private member DiscussionDesign and Testing

Laminating carbon fibre in neck blanks + before and after measurements

Two pieces of maple, each of which were measured beforehand and then cut up and epoxied back together to keep things as consistent as possible. Even the orientation of the grain was the same to avoid any impact of vertical vs horizontal grain lines. The plain maple had one layer of 300gsm 12k unidirectional carbon fibre between each piece, the flame maple had two per lamination, which may be why it sees a smaller gain afterwards? Lots m…

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Thanks for this! I worked with FRPs, carbon fiber, etc. for years as a shipwright and never came across colored product like the Hypetex you mentioned. Very cool! Hypetex makes flax-based and carbon f…
Private member DiscussionAcoustic Repair

Trussrod and refret

Hallo, I have an old archtop (plywood) that needed a refret. There is no trussrod. I talked to the owner, he knows that my work will maybe/eventually more expensive than the value of the guitar. But it was only after leveling the fretboard that I realized that the fret slots are completely off. I talked to the customer again, and we agreed, that I should put a new fretboard on the guitar. I have one, that I took of an old guitar, and reuse…

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just for giggels: from fret to fret in mm: 33,8 32,8 28,9 29,9 28,6 24,3 24,8 23,8 22,0 19,6 19,6 19,6 (!!) 16,4 16,4 14,5 14,3 13,9 13