The Acoustic Guitar Forum

The Acoustic Guitar Forum (https://www.acousticguitarforum.com/forums/index.php)
-   Classical (https://www.acousticguitarforum.com/forums/forumdisplay.php?f=46)
-   -   Italian over D. tucurensis, in a serious way (https://www.acousticguitarforum.com/forums/showthread.php?t=528124)

Bruce Sexauer 11-13-2018 06:32 PM

Italian over D. tucurensis, in a serious way
 
Every now and again I build a classical guitar. I also sometimes build a nylon strung non-classical, a "folk" instrument or more than once, a flamenco. But today's subject is to be a serious guitar. I hope that there are a few people in this sub-forum who will find this interesting, so I have started this thread.

The top is Italian Spruce I sourced from the Rivolta family in 2002. It is high altitude material from a small tree. The client spent some time in the shop with me, and would not have another once he saw this one. He certainly knows what he wants, and gave me a higher than average number of specific for the instrument.

Most interestingly, the customer created their own template which I am using as faithfully as possible. We worked through earlier drafts till it got to where I thought it would work, but it is certainly their design rather than my own. I wonder if it will sound other than my previous several?

I am delighted to believe I have placed the most surface aligned grain directly under the bridge, which is a target I don't always hit as accurately. When the finish goes on I may be a bit less pleased. We'll see.
http://mojoluthier.com/LP18/Greg/templatedtop.jpg

The back, which I call "tuc", and is sometimes called Guatemalan or Panamanian Rosewood, is of the highest quality, but had to be four pieces for this to be true.
http://mojoluthier.com/LP18/Greg/templatedback.jpg

iim7V7IM7 11-13-2018 06:43 PM

Beautiful sets Bruce...:up:

Bruce Sexauer 11-13-2018 07:32 PM

This guitar will be trimmed in Snakewood, with maple purflings, not very unusual in my body of work. An untapered backstrip is unusual for me, however, but that's an aspect of the classic form.

http://mojoluthier.com/LP18/Greg/backstripin.jpg

Bax Burgess 11-13-2018 07:38 PM

Bruce, what's the bracing pattern to be?

Bruce Sexauer 11-13-2018 08:53 PM

Most likely a simple 7 fan. Many patterns work acceptably, and the magic is rather in proportion, IMO. Having developed a scalloping system that works very well for me on steel strings, I have brought some of that concept to the fan braces, and judging by my last few attempts I believe I am on to something. Stay tuned and you will see it happen.

Will Kirk 11-13-2018 09:09 PM

Excited to see this one come together.

Bruce Sexauer 11-21-2018 10:30 AM

Humidity in my shop is usually a given here in wine country paradise and I have never felt the need to manipulate it like Luthierís do in many places. But the last two weeks have had east winds (with catastrophic fire results, though not in my neighborhood) which lowered my shop humidity to 31% for the last 2 weeks. This means I have not been able to brace my plates on this classical guitar.

Today it is raining, and in another few days I should be able to continue with this thread.

nightflight 11-21-2018 01:52 PM

I like the way the back strip turned out. Very handsome. Will be interesting in how it sounds once complete. Great thread and thank you for sharing.

Bruce Sexauer 11-25-2018 10:01 AM

We finally got some more typical weather here in Northern California, and the hygrometer has now shown adequate humidity for 5 days. I expect to get some braces on the guitar tomorrow. Stay tuned!

DownUpDave 11-25-2018 10:52 AM

Thank you for posting this build over here in the classical section, very thoughtful of you. I will be watching how your build progresses with great interest. It is starting out with some beautiful woods from the get go.

You said the back was 4 pieces. I looked really hard and the only place I can see possible joins are the "wings" of the lower bouts. Is that correct?

Bruce Sexauer 11-25-2018 08:06 PM

Quote:

Originally Posted by DownUpDave (Post 5900147)

You said the back was 4 pieces. I looked really hard and the only place I can see possible joins are the "wings" of the lower bouts. Is that correct?

There's a bit of wing showing in the upper bout as well. The timber as acquired was about 6 3/8" wide. It will be considerably less obvious in the end, if the others I've done can be counted on.

Bruce Sexauer 11-28-2018 12:30 PM

Yesterday I deemed my shop environment hydrated for long enough to get back to work on this guitar, so I made the braces and put some of them in. I am particularly pleased with my rosette back up plate as it is actually carved into a form to double as bracing to support the tendency guitars have to fold up across the soundhole. A close look will reveal that it is typically thin in the middle and 3x as thick toward the edges. My SteelString soundhole braces have shared this aspect for years.

http://mojoluthier.com/LP18/V7/clever1.jpg

redir 11-28-2018 01:27 PM

The shape looks a lot like an old Manuel Contreras guitar I have.

As for 4 piece backs, I don't understand why anyone wouldn't like them, you can hardly even tell.

Bruce Sexauer 11-28-2018 08:40 PM

At the end of Wednesday. The neck is Cuban Cedar.

http://mojoluthier.com/LP18/Greg/braces1.jpg

http://mojoluthier.com/LP18/Greg/neck1.jpg

Bruce Sexauer 11-29-2018 07:48 PM

Spent a bit of time carving on the neck today. Going to have to go a bit further, dontcha know!

http://mojoluthier.com/LP18/Greg/neck4.jpg

http://mojoluthier.com/LP18/Greg/neck2.jpg

http://mojoluthier.com/LP18/Greg/neck3.jpg


All times are GMT -6. The time now is 04:18 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Copyright ©2000 - 2018, The Acoustic Guitar Forum

vB Ad Management by =RedTyger=