Australian/New Zealand Luthiers Forum

Thanks John. Having identified the better tops i have now started on the sides as i want to be in a position to use the top or back as soon as its built. Auckland has permanently high humidity so i don't like leaving the plates hanging around for too long. If you don't mind me asking, for the brace...

I would do what you did and put an average value or 1 for the 6.9 for the G for plate ls002. Your results will be a lot close to correct and make for a better comparison. With that low cross grain stiffness the fdiag might be really low.

I just had to do this, and I posted the steps I took earlier this month. I at least tried to use the information from the Book. Link: viewtopic.php?f=33&t=8707

I noticed that the resonance frequency shift with changes in the string height off the top in the saddle position. So if you ever needed to adjust the action, you might see a change.

I did a bit more analysis of the guitar after having it for 4 months. All of the flamenco players that have tried it have been shock at its sound. I watched them go from skeptical to slightly interested when they felt how light the guitar was, to very engaged when they started playing and spending a...

I am trying to match my results from my first Flamenco. It is an amazing sounding instrument. All of the flamenco players that have tried it have been shock at its sound. I watched them go from skeptical to slightly interested when they felt how light the guitar was, to very engaged when they starte...

I am starting a new flamenco blanca guitar with spanish cypress back and sides. The Gore plate thicknessing method using tap tones as described The Book requires evenly thicknessed rectangular plates. Often times with nice back and side sets the plates are non rectangular taking advantage of the fac...

I bend both on a fox style and a bending iron. I never soak the wood, rather I lightly spritz it with the goal of initially quickening the heat transfer into the wood. On a pipe I like to bend very hot with only a light spritz, I always thought that wet wood would try to limit the temperature in the...

First off, when sanding it is really easy to take more off the edges than the center. One has to fight it and check constantly. This issue exists for sanding straight or sanding with a radius board. I think that the friction of sanding tends to place a downward force on the leading edge of the sandi...

I machine the bridge blanks on a small micromill. The CF presented no problems. I wear a dust mask. I use 3K 5.7 oz plain weave fabric. (Sorry about the imperial measurement.)

I take some from the top and some from the bottom (including the radius) until I get the thickness that I want. I am considering simplifying my classical bridges. Like the steel string I will include a 1mm bridge patch and a layer of CF fabric under the the braces. When I make the bridge I will sand...

Thanks guy! The guitar was French Polished. I have been spending a bunch of time learning how to sort of play Flamenco guitar. I might find a real teacher.

This is my first Flamenco Guitar built following the Paco Chorobo video class offered by Robbie O'Brien. It was a fun course to follow as it include a lot of slide visits and interviews in the Spanish flamenco community. Paco Chorobo is an outstanding flamenco guitar builder and a wonderful flamenco...

I have never seen that with shellac even from heat. It seems like on the way to refinishing you can try and sand it out. I have used behlem qualasole for repairs on top as it sticks to nearly anything and can be padded on. I have done whole tops with it and it builds quickly and looks great. I think...

Whoops,

you can always hit the capture spectrom button and after the buffer fills it will open a window that should allow you to open a file. That is one of the ways I get a window.

If you want to open a .tee file (waveform) On the bottom right hand control panel, I select the more tab and then spectrum.

In general do not look at the amplitude of the peak as your test setup really is not accurate in terms of relative peak amplitude. It is really showing you the locations of the resonances on the frequency spectrum. The resonance frequency values and bridge rotation are better indicators of stiffness...

I have a bit of trouble answering a question about "the Gore method" as I think it mischaracterizes the Design volume as it is not a method book. Also the Design volume is not about "Gore type guitars". What is taught in that volume has a lot more inclusive has more depth and is more applicable than...

If the side template\profile is correct and the are sides cut very close to the profile and the waist is bent in the correct place, one can have the sides very close to the correct size and radius with minimal sanding by driving the bus.

Thanks for your comments on the website. As you see I photo document all of my projects. I think that a lot of the big (factory) boys, have a bunch of parts made to pretty exact dimensions and assembles guitars from those parts in a constant way. The parts are probably sized to hit the center of the...

When I read your three choices, from your descriptions it seems like there is only one choice. "1". I never understand when i hear that Siminoff is more doable than processes in The Book. I read 'The art of tap tuning" and watched the DVD that came with it. There is no prescriptive method and in the...

Here is a video my guitar instructor Doug Rice tring this guitar. His main guitar now is one of my falcate classical guitars. Here is his description of the sound he hears from this falcate bracing pattern. " Their superb basic tone color and resonance, especially their high overtones presented a ha...

I do have spectrum graphs of the tap for this and the Osage Orange guitar I posted last week. You will see they are very close. The Pernambuco has a sound port which accounted for the higher Air resonance. I am not sure what the cutaway does to the air resonance T(1,1)1, I do know the sound port wou...

My last complete instrument for a short time (I promise.) It is just that I had two going on and the scheduled Ukulele class. In any case this is a "Contemporary Classical" Guitar. I get it, an oxymoron. The basic body shape is a Hauser 37 with the cutaway added. The contemporary features are a bolt...

I held off giving my own from my hind side comments on blind listening tests mainly because of where I am pulling them from. Here goes ... Part of the context for my point is that humans are not like a microphone and a computer, we do not hear reality rather we have learned through evolution and in ...