EIR/Lutz Torres-based guitar

Construction and repair of Classical Guitar and related instruments
Pat Foster
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Location: Spokane, WA

EIR/Lutz Torres-based guitar

Post by Pat Foster » Thu Jul 13, 2017 9:25 pm

Here's my first classical build. I started messing about with steel string guitars years ago, playing and repairing, and started building them in 2005. Classical pieces started to grow on me a few years ago, and I thought, "Someday I'll build a classical guitar and learn to play it." Part of that someday is here, in a break between commissions for my steel strings; learning to play it is still off in the future, but it looks like there are some great resources here for that. I still think I'll need a teacher to cure me of the bad habits I picked up playing fingerstyle.

I looked around, read some books, especially the one on Torres by Romanillos, then found a plan of SE114 (owned by Tarrega, as you all probably know) drawn by Jeff Elliott, a builder of some renown, following his extensive restoration of that icon. I have no delusions that I can do it any justice, except maybe cosmetically, and even that's arguable.

So, I'm starting from scratch, building a solera and other jigs. It's East Indian rosewood back, sides and binding, Lutz top, ebony fretboard, mahogany neck, Brazilian rosewood bridge, Gotoh tuners. Finish will be French polished Royal Lac.

Here's the topographic map that appeared when I dished the solera. It's not made to accurately fit the dome; the top bracing was glued in a separate dish with a 15 ft radius. It yielded a 2mm dome per Elliott's plan. The dished solera is just to proved clearance. I added slots for brackets to hold the sides.
IMG_0152.jpg

Here's some of the wood used. I ended up with a different neck. It's stacked rather than the solid heel block shown here.
IMG_0130.jpg

Here's the top getting joined in the torture rack.
IMG_0135.jpg

I used an off-the-shelf rosette for this one. Considering the time required, the price made it a no-brainer.
IMG_0185.jpg

I had to force it a bit since the rosette didn't match the soundhole diameter as I would have liked. The gap ended up a little off-center, but no worries as it will be under the fretboard. The plan calls for a thin top, alarmingly so for a steel string builder!
IMG_0190.jpg

Fan bracing. Support from the topmost harmonic bar, omitted here, will come from an extension of the neck block that will support the fretboard under the body. This is the one structural deviation from the plan.
IMG_0203.jpg

That's all for now. I have a buddy from our local luthiers' group coming by for some advice. Hope I don't steer him wrong!

'Til next time.

Pat
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jim watts
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Location: Los Alamos, NM, USA

Re: EIR/Lutz Torres-based guitar

Post by jim watts » Fri Jul 14, 2017 12:30 am

Hey Pat, welcome to the dark side :)
Lookin good,
jim

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Waddy Thomson
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Re: EIR/Lutz Torres-based guitar

Post by Waddy Thomson » Fri Jul 14, 2017 1:47 am

The real dark side! Lookin good, Pat!
Waddy

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Pat Foster
Luthier
Posts: 36
Joined: Sat May 13, 2017 4:12 pm
Location: Spokane, WA

Re: EIR/Lutz Torres-based guitar

Post by Pat Foster » Fri Jul 14, 2017 3:01 am

Waddy Thomson wrote:
Fri Jul 14, 2017 1:47 am
The real dark side! Lookin good, Pat!
jim watts wrote:
Fri Jul 14, 2017 12:30 am
Hey Pat, welcome to the dark side :)
Lookin good,
jim
Thank you, gentlemen. Nice to see I'm in good company!

Pat

vesa
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Re: EIR/Lutz Torres-based guitar

Post by vesa » Fri Jul 14, 2017 6:19 am

Thanks for sharing. Looking forward to follow your build.
Vesa Kuokkanen

Antonio Marin nr. 813 1995 (Bouchet)
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rinneby
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Location: Sweden

Re: EIR/Lutz Torres-based guitar

Post by rinneby » Fri Jul 14, 2017 7:03 am

Nice work. That rosette looks a little bit "Fleta" doesn't it?

/Jon
1965 - Masaru Kono No.5
1975 - Atushi Nakamura No.15
1977 - Kuniharu Nobe No.15
1996 - Masaru Kohno Maestro

Feel free to ask me anything about Japanese classical guitars.

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tom0311
Amateur luthier
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Re: EIR/Lutz Torres-based guitar

Post by tom0311 » Fri Jul 14, 2017 10:05 am

Nice work :) Lutz is wonderful.
“There are two means of refuge from the misery of life - music and cats.”

Pat Foster
Luthier
Posts: 36
Joined: Sat May 13, 2017 4:12 pm
Location: Spokane, WA

Re: EIR/Lutz Torres-based guitar

Post by Pat Foster » Sun Jul 16, 2017 3:39 am

Thanks for the comments!

Rinneby, it does indeed.

Here is one of the Chladni patterns, the cross dipole, looking much like what I look for on my steel string guitars.
IMG_0196.jpg

Moving on to the neck, the slot for the stiffener is being routed.
IMG_0179.jpg

Another departure from the plan: I used a v-joint between the neck and the headstock.
IMG_9391.jpg

The tuner post holes are being drilled using a shop-made jig.
IMG_9399.jpg

Spanish cedar back harmonic bars are glued and clamped.
IMG_9397.jpg

The back is ready.
IMG_9428.jpg

'Til next time,

Pat
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Pat Foster
Luthier
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Joined: Sat May 13, 2017 4:12 pm
Location: Spokane, WA

Re: EIR/Lutz Torres-based guitar

Post by Pat Foster » Tue Jul 18, 2017 4:54 pm

Time to work on the bridge. I had some Brazilian rosewood sitting around for a while that was too thin for steel string bridges, but just right for a classical bridge. Here, the first cuts have been made and the string holes drilled.
IMG_9413.jpg

The bridge is held in a fixture for cutting slots for the saddle and trough.
IMG_9406.jpg

The ramp was cut on the trough.
IMG_9412.jpg

I shaped the wings and added a bone tie block, a simple one in keeping with the Spanish look.
IMG_9438.jpg

Here, the neck and top are joined. I really like what happens at this step, setting the backbone of the guitar in place, much like laying the keel on a wooden boat.
IMG_9462.jpg
Thanks for watching,

Pat
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Bruno Piancatelli
Amateur luthier
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Location: Argentina

Re: EIR/Lutz Torres-based guitar

Post by Bruno Piancatelli » Wed Jul 19, 2017 10:32 pm

Looking good Pat! I like your jigs a lot..

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senunkan
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Re: EIR/Lutz Torres-based guitar

Post by senunkan » Thu Jul 20, 2017 1:05 am

Very nice and well-organised build.
Looking great!
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Pat Foster
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Joined: Sat May 13, 2017 4:12 pm
Location: Spokane, WA

Re: EIR/Lutz Torres-based guitar

Post by Pat Foster » Thu Jul 20, 2017 2:35 pm

senunkan wrote:
Thu Jul 20, 2017 1:05 am
Very nice and well-organised build.
Looking great!
Bruno Piancatelli wrote:
Wed Jul 19, 2017 10:32 pm
Looking good Pat! I like your jigs a lot..
Thank you!

Pat

Jon Gillard
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Location: Devon UK

Re: EIR/Lutz Torres-based guitar

Post by Jon Gillard » Tue Jul 25, 2017 9:16 pm

Thanks for posting Pat always interesting to follow a build
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Michael Propsom
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Re: EIR/Lutz Torres-based guitar

Post by Michael Propsom » Wed Jul 26, 2017 2:08 am

Pretty cool, Pat. But, I'm curious. It appears that you drilled your string slots at a downward angle rather than slightly upward. What is your reasoning for this, a greater break angle?

Pat Foster
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Location: Spokane, WA

Re: EIR/Lutz Torres-based guitar

Post by Pat Foster » Sat Jul 29, 2017 3:00 am

Thanks, Jon.

Mike, are you talking about the string holes in the bridge? I saw that in one of the books, Bogdanovich, or Courtnall. Seemed like a good idea, providing a little more clearance off the top while still keeping the break angle. Probably would have been fine either way.

Pat

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