EIR/Lutz Torres-based guitar

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

Re: EIR/Lutz Torres-based guitar

Post by Pat Foster » Mon Jul 31, 2017 4:00 pm

Onward! The tail block gets glued in place. There's a spacer between the block and the solera brackets that's the same thickness as the sides to keep the spacing correct.
IMG_9471.jpg

The sides were glued to the top and wedged and glued in place at the neck block.
IMG_9476.jpg

Tentellones and linings were glued in place.
IMG_9481.jpg

The linings were cut to take the back bars. Side braces were added and were let into the tentellones and linings for better protection from cracks.
IMG_9483.jpg

Pat
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Last edited by Pat Foster on Thu Aug 10, 2017 5:37 pm, edited 2 times in total.

Pat Foster
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Location: Spokane, WA

Re: EIR/Lutz Torres-based guitar

Post by Pat Foster » Thu Aug 10, 2017 5:34 pm

Back at it.

Braces were added to support the back harmonic bars, then the back was glued to the sides. Plexiglas helps even out the clamping forces.
IMG_9487.jpg

A simple maple backstrip was inlaid into the back in keeping with the simple details of SE114. Here, the theme is carried over to the end graft.
IMG_9493.jpg

To the left of the heel, the EIR/maple binding is on. To the right, everything is ready for the binding to go on.
IMG_9497.jpg

Fretboard goes on.
IMG_9507.jpg

Final shaping of the neck is in progress.
IMG_9513.jpg

New meets old, using a laser to eyeball the neck profile. A profile template was used for fine tuning
IMG_9533.jpg

Finish prep and finish follow shortly!

Pat

edit: P.S. What a mixup!! Not at all what I posted. I'll have to come back and clean it up when I have some time.

edit: P.P.S. Removed images and replaced them. The file names had spaces in them; it appears that doesn't work too well.
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Chris Sobel
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Re: EIR/Lutz Torres-based guitar

Post by Chris Sobel » Wed Sep 06, 2017 7:56 am

Pat,

I'm enjoying following your work. I like the back plexiglass idea a lot... what thickness are you using for the plastic?

Chris
CE Sobel Guitars

Joseph
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Re: EIR/Lutz Torres-based guitar

Post by Joseph » Wed Sep 06, 2017 8:48 am

Some really great ideas here, thanks so much!

All the best, Joseph
Joseph "Soxy" Price
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Specialising in Advanced Playability and Accurate Intonation

Pat Foster
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Location: Spokane, WA

Re: EIR/Lutz Torres-based guitar

Post by Pat Foster » Sun Nov 26, 2017 9:07 pm

Chris Sobel wrote:
Wed Sep 06, 2017 7:56 am
Pat,

I'm enjoying following your work. I like the back plexiglass idea a lot... what thickness are you using for the plastic?

Chris
Hadn't checked this thread for a while.

Chris, Thanks. I think it's 3/16", flexible enough to conform to a 2mm arch, yet stiff enough to spread out the clamping forces.

Pat Foster
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Re: EIR/Lutz Torres-based guitar

Post by Pat Foster » Fri Dec 01, 2017 6:45 pm

Well, I guess it's time to finish up this build thread. I put the strings on back in August.

French polished shellac is curing. After using shellac for years, since this guitar is sort of an experiment/keeper, I used Royal Lac, a shellac-based concoction that goes on like regular shellac, but cross-links after a few months, when it becomes impervious to water and alcohol, according the advertising on it, and my own testing.
IMG_9541.jpg
IMG_9544.jpg
Attaching the bridge using my massively overbuilt vacuum fixture, which is being replaced due to some tutoring from a friend who used to design and build propellers and knows more about vacuum and laminating composites than anybody I know.
IMG_9545.jpg

The plan called for a highly tapered headstock width. On future builds, I expect I'll widen it a bit near the nut end.
IMG_9670.jpg
IMG_9672.jpg

Nice silk in this top. BRW bridge.
IMGP9448.jpg

The Fleta-like pre-made rosette. I'll be doing my own design soon.
IMGP9447.jpg
IMG_9666.jpg
I was initially disappointed with its tone when I put the strings on and tuned it up. I didn't know how much it would improve over a short period of time, much more so than my steel string guitars. I started taking lessons and my teacher was pleased with it, so much so that he asked to borrow it for a week to show his friends and fellow teachers and players. He ordered one the following morning, and that evening, a professor of music at a nearby university who he knows and performs with also ordered one. Could have knocked me over with a feather.

Its tone has improved drastically since August. So, I'm pleased with the outcome.

Thanks for looking in!

Pat
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Waddy Thomson
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Re: EIR/Lutz Torres-based guitar

Post by Waddy Thomson » Sat Dec 02, 2017 3:33 am

Way to go, Pat! Nice job and beautiful guitar.
Waddy

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printer2
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Re: EIR/Lutz Torres-based guitar

Post by printer2 » Sat Dec 02, 2017 3:54 am

Well no wonder the build went so fast, you forgot to put in the fret markers. :wink:
Fred

Pat Foster
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Re: EIR/Lutz Torres-based guitar

Post by Pat Foster » Sat Dec 02, 2017 3:50 pm

printer2 wrote:
Sat Dec 02, 2017 3:54 am
Well no wonder the build went so fast, you forgot to put in the fret markers. :wink:
But I did put one side marker at the 7th!
Waddy Thomson wrote:
Sat Dec 02, 2017 3:33 am
Way to go, Pat! Nice job and beautiful guitar.
Thanks, Waddy, and thanks for your thread with the v-joint on the TLC.

Pat

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chelson
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Re: EIR/Lutz Torres-based guitar

Post by chelson » Sun Dec 03, 2017 9:50 am

Is she for sales? :)
Without heart and desire, talent is nothing.

acmost9
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Re: EIR/Lutz Torres-based guitar

Post by acmost9 » Sun Dec 03, 2017 10:01 am

Pretty awesome...congrats!

ceddia
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Re: EIR/Lutz Torres-based guitar

Post by ceddia » Tue Dec 05, 2017 7:38 pm

Thanks for sharing.

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Doug Ingram
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Re: EIR/Lutz Torres-based guitar

Post by Doug Ingram » Wed Dec 06, 2017 12:04 am

I was wondering how you made such blistering progress! Retroactive posting.

Nice job. These guitars change tone dramatically within hours, then mature over time.

sakthivel v
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Re: EIR/Lutz Torres-based guitar

Post by sakthivel v » Wed Dec 06, 2017 2:05 pm

Looks gorgeous! Congrats Pat .which Torres this guitar based on? How thin you made the top?

Pat Foster
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Re: EIR/Lutz Torres-based guitar

Post by Pat Foster » Thu Dec 07, 2017 3:14 am

chelson,

She's a keeper. I'm hesitant to sell the first one, as I was with my first steel string, still going strong after 12 years.

Thanks, acmos19.

You're welcome, ceddla.

Doug, yes, it was dramatic alright, and it's still changing day to day, but the rate is slowing. Getting better, though.

Thanks, sakthivel v. It's based on the Torres SE 114, from a plan by Jeff Elliott, drawn from his restoration of the instrument. The top thickness varies, from 1.4mm to 2.4mm.

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