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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 DiscussionAcoustic Repair

Yamaha System 19 pre-amp in an LD-10E guitar

Hi Folks Newbie here so please bear with me. I have a lovely early 90's Yamaha LD-10E acoustic in for repair, I think all solid wood? made in Indonesia and a lovely sounding instrument, however the electrics are letting it down. The pre-amp has a PCB populated with SMD electrolytic caps. Many of these have leaked and destroyed the PCB pads underneath. Repairing the traces is nigh on impossible so it looks like I'll have to replace t…

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Private member
Can you put up some pics?
Private member DiscussionAcoustic Repair

So what about Re-tops then…. (on a vintage D-35)

Hello again folks, how is everyone! So I'm curious about what people here think about re-tops, who's done them, and what sorta ballpark rates you've charged for past completed jobs. I've got a bit of a wild one here, so strap in if you've got a couple minutes for story time! Back in 2012, I traded an HD28V of mine for a cool 1966 D-35 that needed some work. Basically, the body and neck of the guitar were fine apart from…

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Private member
Oh yes, it is absolutely not down to financial matters here, or I'd have abandoned it completely hahaha, I've been thinking more about it, perhaps I will take the plunge, and have a bit of silly fun w…
Private member DiscussionAcoustic Repair

Bridge tore off damaging soundboard

Here's yet another acoustic guitar bridge tear off, this time the sound board came with and was damaged. The bridge is not damaged and can be cleaned up. But how would one go about repairing the sound board where the pegs? this is another skill building exercise - not a customers guitar. I included pictures of the bridge plate. If this has already been covered here, please provide a link. Thanks again very much to this great group…

13 replies
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Ian Davlin
I don't mean to argue with your police work, but I don't see the crack coming through to the bridge plate in the pics. Could just be the angle. Same thing though. The reason I'd use epoxy for this pro…
Private member DiscussionShop Organisation

How do you all keep track of your builds/repairs?

Hey all. I apologize if this type of post isn't allowed here but wanted to share anyway. I've been building a tool called Looth specifically for luthiers and repair techs, and I'm looking for a small group of interested looths to help shape it a bit more before it goes public. I got tired of managing spreadsheets and decided that it could be simpler and more automated. The core idea is simple: one place to track every build…

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Private member
I've got some great feedback on this app so far. Anyone else using something similar or different? What is working for your shop?
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…

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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…
Private member DiscussionFinish Repair

looking for recommendations repairing big dent - chipped polyurethane finish

Good morning to all - I have another skill building question - picked up another cheapo electric guitar to practice repairs on. I didn't see the big dent, but figured its an opportunity to practice another type of repair. big chunks of polyurethane finish are gone and the bit that's left has a hairline crack around the bottom. I'm thinking to use wood filler to fill in the missing chunks, and want to know if its best to remove the piec…

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Private member
I don't know, but I did see enough to consider how to best handle it before I start the repair. I can see that the glueboost might be a good way to approach that hairline crack, but who knows what is l…
Private member DiscussionCAD/CAM

“I live my life a 1/8 mm at a time”

Guitar neck topology is worth going microscopic. 🔬🦠 After building my starting surface from a wireframe network in the sketch environment; a system of 4-degree control point spline rails, tangent to projected isoparametric curves along the shaft — I can convert the NURBS surface to a T-Spline and start cleaning up the artifacts left behind by the original loft. In this demo I’m turning on Box Display, which feels strange at first because…

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Private member DiscussionAcoustic Builds

Wood Pergatory and Storing it for Future Use

Greetings and thanks in advance for your help. I live in one of the most inhospitable places in the world for wood storage (Mojave Desert CA) and later this year will be moving to another more inhospitable place (Sonoran Desert, Buckeye AZ). The realative humidity is currently 16% and that will drop when summer comes. I'm attempting to collect and store wood for future builds and today I spent some time wrapping all of it in seran…

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Ian Davlin
Where is the wood at in cure right now ? Is it ready to build ? One thing we did at Breedlove (Oregon desert and quite dry) was wax the end grain before stickering. I'm not an expert on wood storage, b…
Private member Discussion3D Printing

Tacform Update

I’ve been speed modelling parts with the printer running 24/7 since inception. There are currently somewhere around 75-100 individual pieces modelled in my source file. Mostly only building on what I’m considering the X axis, but it’s Freeform so I’ve used them to build out Y.. anyways… Connectors, Extenders, Couplers, Links, Sleeves, Feets, Plugs, Panels, Hooks… and on and on. In a moments time, I will have a mass drop folder of Standar…

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Private member DiscussionElectric Builds

First attempt at multi-ply binding

The Artisan Guitar Show this weekend gave me a kick in the behind to get back to more promoting of the builds I'm doing. Here's my first try doing multiply binding, and it turned out pretty well

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Private member
Thanks! I don't know if Ally from StewMac has an account here, but her talk at the AGS this past weekend gave me the motivation to get back to more content-as-marketing.
Private member DiscussionElectric Builds

Back in the business!

So after a small battle with an illness, I started building again just today! The first (old) own design since 2020. It seem like I'm breathing again! Images

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Private member
good to have you back again fresh and healthy!
Private member DiscussionElectric Repair

Possible ground loop in Tele

Hello all, got a problem in a telecaster I rewired that has me in a twist. The basics: friend has a 2001 US Standard telecaster (left handed not that it matters). He bought it used and says it was quiet initially. A few years back he grabbed the pickups out of it and moved them to a new tele body with a torrefied maple neck he preferred. Recently he upgraded the new build with a Lollar CC tele set, and asked me to reinstall the original…

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Private member
Well, another update: I rewound the neck pickup, and flipped the polarity, so now the set is RWRP. Everything wired back up, and when the pickups are in series (position 4), it's dead quiet. The buzzi…
Private member DiscussionAcoustic Builds

Wood-Body Resonator Guitar Construction – Materials & Suppliers?

Hi Everyone, I believe this may be my first post here, so just a quick introduction — I’m Andrew in Milwaukee, WI. I’ve been building a few years. My luthier eyes were opened first by Charles Fox in Portland which led me to the Gallop School. I recently retired from a tech career and I am now based in Milwaukee, WI focusing on acoustic builds. I’m currently exploring wood-body resonator guitars, and I’d love to learn more from t…

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Ian Davlin
Andrew, I'd like to talk to you about this question. Could we connect on a zoom call ?
Private member DiscussionAcoustic Repair

how to touch this up?

I have repaired numerous top crack on this instrument built by a customer at a guitar building camp. The bridge was off and warped. That has been addressed. After gluing with hide glue and splining the crack these top two did not closed as much as I would have liked. The bigger is about 1/32 at the widest and the other about 1/64. The crack is tight at the bottom. If I can help it I would like to fill it rather than spline it as I have…

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I am pretty good at touch up on darker to med woods and air brushing some solid color touchups on electrics but as you said spruce tops with gloss are near impossible. I was hoping to maybe clean it…
Private member DiscussionAcoustic Builds

New Acoustic Build - Having trouble

Hi all. Brand new member. I’ve been building a classical guitar via kit from LMI for a couple of years now. I keep putting it off but recently became motivated to get back to it. Unfortunately LMI is out of business so I now have no one to go to to ask questions. I’m at the stage where I’m putting the sides together in the form. I followed the dimensions for the form based on the plans as I measured them, but the sides overlap pretty ba…

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Private member
Structurally you are fine. When you glue this up (this is important), make sure your sides are clamped in the form VERY snug so there are no gaps between the sides and the forms. This will leave the…
Private member DiscussionCAD/CAM

Fast & Curious 3: Parametric Drift

https://www.instagram.com/reel/DWAuW40jAR_/?igsh=MW1jNDdoYzllMGFmMA== I’ve spent a few overly caffeinated days bouncing between modelling environments, different combinations of operations, tools.. subtle differences in how the coffee is brewed. In short… • Building Iso Curves in Sketch. Defining the surface structure and flow • NURBS Surfacing from curves, smooth intentional surface topology. • BRep Face to T-Spline in Form Environment. Org…

6 replies
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Private member
Brett -- If you are doing free-form modelling, have you tried using Shapr3D software? I just started playing around with it and it seems to be reasonably intuitive and easy with which to get started.…
Private member DiscussionAcoustic Builds

Semi-hemi fret question

For those of you who regularly do semi-hemispherical frets -- how long do you make your frets? Specifically for a bound fretboard (although I suppose this would apply to either bound or unbound) do your frets come up a little short of the outside edge of the binding? And if so, how much gap do you leave? I did my first semi-hemis on a new build and made them end flush with the outside edge of the bindings, but it doesn't feel right.…

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Thanks for adding the visual. So if there weren't a chamfer there, you'd be about 0.02" inches short of the edge, right? That "feels" right to me....