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PostPosted: Sun Jan 19, 2020 10:39 pm 
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First name: Jay
Last Name: De Rocher
City: Bothell
State: Washington
I'm in the middle of building an octave mandolin that's a hybrid between a mandolin and guitar. Octave mandotar? Octar?

The body is a bit larger than a typical baritone ukulele. The lower bout is 10.5". I originally intended the body size to be about half way between a baritone ukulele and a parlor guitar, but I was only able to find a single hardshell case that was available that would fit that size and it was very spendy so I went with the smaller size for now. Depending on how it sounds, I may go ahead with the larger body size later. The scale length is 20". I probably erred on the side of over-bracing the top, but we'll see. Need to finish up the neck now.

Lutz spruce top, walnut back and sides, and khaya neck with Indian rosewood binding, fretboard, and bridge.

Attachment:
Octave mando bracing.jpg

Attachment:
Octave mndo in progress.jpg


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These users thanked the author J De Rocher for the post (total 3): olmorton71 (Mon Feb 03, 2020 9:27 am) • Pmaj7 (Mon Jan 20, 2020 11:44 pm) • Michaeldc (Sun Jan 19, 2020 11:56 pm)
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PostPosted: Sun Jan 19, 2020 11:20 pm 
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Joined: Thu Nov 21, 2013 2:03 pm
Posts: 569
First name: Toonces
Last Name: the Cat
City: New Smyrna Beach
State: FL
Country: United States
Focus: Build
Status: Amateur
I picked up a pretty remarkable billet of Desert Ironwood (Olneya Tesota) about 15 years ago when I first started building. It's one of the rarest woods in the world and is protected - timber is only acquired from dead trees. Even more than a species like Snakewood, getting large pieces without issues is quite rare. Anyway, I ended up with two back/side sets from an extraordinarily beautiful and mostly flawless billet. The sides are perfectly quarter sawn and the backs are quarter sawn in the center and move to flat sawn at the very edges. No flaws, just clean beautiful grain. It's interesting stuff as the grain structure is quite a bit different than every other wood I've encountered. Check out some photos online to see how amazing this stuff can look. It is often used for pen blanks and small turning projects due to the difficultly of acquiring large pieces without flaws.

Well, I've wanted to build with this stuff for years now and finally decided to fit this guitar into my build list. I'm building with the lesser of the two sets I have (saving the best for down the road) but it is still one of the finest sets I've ever been privileged to build with. It's a 3-piece back and visually, it works out well this way. I'll snap some photos in the near future and post a thread. I don't expect I'll ever find another set of this wood ever again, so it's fun when you get a chance to work with something like this.



These users thanked the author Toonces for the post: Pmaj7 (Mon Jan 20, 2020 11:50 pm)
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PostPosted: Mon Jan 20, 2020 1:00 am 
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Joined: Sun Jun 22, 2014 1:45 pm
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First name: Michael
Last Name: Colbert
City: Anacortes
State: WA
Focus: Build
Today I gave cutting a mandolin bridge on my cnc a try. I’m able to cut the radius in the saddle along with basic compensation. I’m also able to mark the string locations, saving a bunch of time on initial setup. A couple more tweaks to the drawing and a couple to the code and that’ll be that about that.

Best, M


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These users thanked the author Michaeldc for the post (total 3): olmorton71 (Mon Feb 03, 2020 9:27 am) • dpetrzelka (Tue Jan 21, 2020 10:23 am) • Pmaj7 (Mon Jan 20, 2020 11:51 pm)
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PostPosted: Mon Jan 20, 2020 1:01 am 
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Brazilian Rosewood
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Working on a size 2 travel guitar. I made a "modern" rosette with some burl veneer someone gave me. I now understand why these are so popular. It went together without any fuss. The sides and back are laminated rosewood, top is Engelman spruce.


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PostPosted: Mon Jan 20, 2020 10:03 am 
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Joined: Sat Mar 09, 2019 4:50 pm
Posts: 1259
Location: Goodrich, MI
First name: Ken
Last Name: Nagy
City: Goodrich
State: MI
Focus: Build
Status: Amateur
I finally have a violin varnish (on a 5 string viola) that I am happy with. Put a very thinned out coat of varnish on after sanding with 1000 grit. Didn't like the satin after sanding, and the varnish worked like a polish perfectly. Finally after 10. If I did them more often, it would help.

Next is the small baroque guitar. Not much bigger in volume than the viola. I think it will be pitched one string up from a standard guitar. 540 scale, D G C e a. So the G is equal to the low G on the viola, but the third string on a standard guitar. So unless I do something crazy, like put an octave lower C string on it (I'm crazy enough to have thought about it) the viola is actually a note lower.

I only have the neck and head started so far. It should be a fairly quick build. It's cold in the basement. So shorter, intense trips down there.

Attachment:
20200120_093545.jpeg


Attachment:
20200120_093643.jpeg


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These users thanked the author Ken Nagy for the post (total 2): olmorton71 (Mon Feb 03, 2020 9:28 am) • Pmaj7 (Mon Jan 20, 2020 11:52 pm)
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PostPosted: Mon Jan 20, 2020 10:29 am 
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Joined: Wed Feb 17, 2016 8:54 am
Posts: 854
State: Texas
Country: United States
Focus: Repair
I decided to finally build my 18" jumbo design I've been toying with in my head for the past 2 years.

Purchased some wonderful birdseye maple and some very old tops that were previously owned by someone named Abe Wechter.

The biggest news is that my wife agreed to let me convert the living room to a mini workshop. Big sacrifice for her since we still are living in an apartment.



These users thanked the author DanKirkland for the post: Pmaj7 (Mon Jan 20, 2020 11:52 pm)
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PostPosted: Mon Jan 20, 2020 11:26 am 
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Joined: Sun Mar 30, 2008 8:20 am
Posts: 5968
Dan Kirkland wrote:
"The biggest news is that my wife agreed to let me convert the living room to a mini workshop. Big sacrifice for her since we still are living in an apartment."

That is a HUGE sacrifice, and one she may come to regret.
This past year I have been doing some lutherie work in the house using a large hutch as a work bench. It has storage above and below and an open center section I use as a bench top and go bar deck. It forms a 3 sided enclosure with one corner of the room and if I did much sanding there I could hang a curtain to limit how much dust would leave the enclosure Although there are limitations to the set up I find ways to work around most of them.
One of the pluses of the setup is that I am not isolated from the rest of the family when I am working.


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PostPosted: Mon Jan 20, 2020 11:40 am 
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Joined: Sun Jun 22, 2014 1:45 pm
Posts: 1484
First name: Michael
Last Name: Colbert
City: Anacortes
State: WA
Focus: Build
DanKirkland wrote:
I decided to finally build my 18" jumbo design I've been toying with in my head for the past 2 years.

Purchased some wonderful birdseye maple and some very old tops that were previously owned by someone named Abe Wechter.

The biggest news is that my wife agreed to let me convert the living room to a mini workshop. Big sacrifice for her since we still are living in an apartment.



Sweet!

My wife let me build my first 2 guitars in our dining room.

Here’s to the support of our partners and families!


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PostPosted: Mon Jan 20, 2020 11:41 am 
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Joined: Sun Jun 22, 2014 1:45 pm
Posts: 1484
First name: Michael
Last Name: Colbert
City: Anacortes
State: WA
Focus: Build
Ken Nagy wrote:
I finally have a violin varnish (on a 5 string viola) that I am happy with. Put a very thinned out coat of varnish on after sanding with 1000 grit. Didn't like the satin after sanding, and the varnish worked like a polish perfectly. Finally after 10. If I did them more often, it would help.

Next is the small baroque guitar. Not much bigger in volume than the viola. I think it will be pitched one string up from a standard guitar. 540 scale, D G C e a. So the G is equal to the low G on the viola, but the third string on a standard guitar. So unless I do something crazy, like put an octave lower C string on it (I'm crazy enough to have thought about it) the viola is actually a note lower.

I only have the neck and head started so far. It should be a fairly quick build. It's cold in the basement. So shorter, intense trips down there.

Attachment:
20200120_093545.jpeg


Attachment:
20200120_093643.jpeg


Looks great!


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PostPosted: Mon Jan 20, 2020 11:43 am 
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Koa
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Joined: Sun Jun 22, 2014 1:45 pm
Posts: 1484
First name: Michael
Last Name: Colbert
City: Anacortes
State: WA
Focus: Build
J De Rocher wrote:
I'm in the middle of building an octave mandolin that's a hybrid between a mandolin and guitar. Octave mandotar? Octar?

The body is a bit larger than a typical baritone ukulele. The lower bout is 10.5". I originally intended the body size to be about half way between a baritone ukulele and a parlor guitar, but I was only able to find a single hardshell case that was available that would fit that size and it was very spendy so I went with the smaller size for now. Depending on how it sounds, I may go ahead with the larger body size later. The scale length is 20". I probably erred on the side of over-bracing the top, but we'll see. Need to finish up the neck now.

Lutz spruce top, walnut back and sides, and khaya neck with Indian rosewood binding, fretboard, and bridge.

Attachment:
Octave mando bracing.jpg

Attachment:
Octave mndo in progress.jpg


Hurry up, I want play it! ;)


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PostPosted: Mon Jan 20, 2020 11:48 am 
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Koa
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Joined: Sun Jun 22, 2014 1:45 pm
Posts: 1484
First name: Michael
Last Name: Colbert
City: Anacortes
State: WA
Focus: Build
Toonces wrote:
I picked up a pretty remarkable billet of Desert Ironwood (Olneya Tesota) about 15 years ago when I first started building. It's one of the rarest woods in the world and is protected - timber is only acquired from dead trees. Even more than a species like Snakewood, getting large pieces without issues is quite rare. Anyway, I ended up with two back/side sets from an extraordinarily beautiful and mostly flawless billet. The sides are perfectly quarter sawn and the backs are quarter sawn in the center and move to flat sawn at the very edges. No flaws, just clean beautiful grain. It's interesting stuff as the grain structure is quite a bit different than every other wood I've encountered. Check out some photos online to see how amazing this stuff can look. It is often used for pen blanks and small turning projects due to the difficultly of acquiring large pieces without flaws.

Well, I've wanted to build with this stuff for years now and finally decided to fit this guitar into my build list. I'm building with the lesser of the two sets I have (saving the best for down the road) but it is still one of the finest sets I've ever been privileged to build with. It's a 3-piece back and visually, it works out well this way. I'll snap some photos in the near future and post a thread. I don't expect I'll ever find another set of this wood ever again, so it's fun when you get a chance to work with something like this.


I went out to have a look at the Ironwood, so beautiful! I love the colors.

Hope to see a couple pics of the end result. I wouldn’t mind seeing parts of your process either. Could be fun and informative.

Best, M


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PostPosted: Mon Jan 20, 2020 11:49 am 
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Joined: Fri May 09, 2008 2:25 pm
Posts: 1957
First name: George
City: Seattle
State: WA
Country: USA
Focus: Build
Status: Amateur
the camera on my old phone is showing it's age, but my first effort of the new year has been closing up a lutz/koa OM.

Image

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These users thanked the author George L for the post (total 2): dpetrzelka (Tue Jan 21, 2020 10:24 am) • Pmaj7 (Mon Jan 20, 2020 11:56 pm)
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PostPosted: Mon Jan 20, 2020 11:59 am 
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Joined: Wed Oct 08, 2008 11:36 am
Posts: 7380
Location: Southeast US
City: Lenoir City
State: TN
Zip/Postal Code: 37772
Country: US
Focus: Repair
Got the usual parade of setups coming in the shop. Also doing a "restore to playable" job on a 1930's MayBell (think Woodie Guthrie). Of course I've got one of my own in work too, a 13 fret 000, Honduran rosewood and torrefied red spruce with curly koa trim and armrest.


Image

Image

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Last edited by SteveSmith on Mon Jan 20, 2020 2:27 pm, edited 1 time in total.


These users thanked the author SteveSmith for the post: Hesh (Tue Jan 21, 2020 10:46 am)
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PostPosted: Mon Jan 20, 2020 12:45 pm 
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Posts: 727
First name: Brian
Last Name: McDonald
City: Okanagan Centre
State: British Columbia
Zip/Postal Code: V4V2H6
Country: Canada
Focus: Build
Status: Amateur
Started this OM, will be a slow go, a few other projects on the go.
Bocote and WRC


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PostPosted: Mon Jan 20, 2020 1:01 pm 
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Joined: Wed Feb 20, 2008 7:15 pm
Posts: 7380
First name: Ed
Last Name: Bond
City: Vancouver
Country: Canada
Focus: Build
Status: Professional
What's the tap tone like on that bocote?


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PostPosted: Mon Jan 20, 2020 1:38 pm 
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Posts: 687
First name: Casey
Last Name: Cochran
City: Gainesville
State: GA
Zip/Postal Code: 30501
Country: USA
Focus: Build
It's box building time! 3 dreads and 3 000s in the works.

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PostPosted: Mon Jan 20, 2020 7:18 pm 
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First name: Ed
Last Name: Minch
City: Chestertown
State: MD
Zip/Postal Code: 21620
Country: United States
Focus: Build
Status: Amateur
Boy - nice CNC work, violin inlays, 18" and 13 fret guitars. Looks like fun all

I am starting a redwood topped figured maple double 0 with a Stauffer head

Here is the top with a wash of shellac before final thicknessing. The wood spent since 1954 on the wall of a ranch house that a friend bought - 30-40 absolutely vertical grain lines per inch


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These users thanked the author Ruby50 for the post: Pmaj7 (Mon Jan 20, 2020 11:58 pm)
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PostPosted: Mon Jan 20, 2020 8:11 pm 
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First name: Brian
Last Name: McDonald
City: Okanagan Centre
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meddlingfool wrote:
What's the tap tone like on that bocote?

Hi Ed,
I’m probably not the best to describe tap tones, don’t think I quite have a handle on that yet.
But, compared to others I attempt to tap, I would call it crisp, glassy.
Quite a hard brittle wood.
If you are interested I have the sister set for sale on the classifieds.

B

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PostPosted: Mon Jan 20, 2020 8:16 pm 
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Location: Central PA
First name: john
Last Name: hall
City: Hegins
State: pa
Zip/Postal Code: 17938
Country: usa
Focus: Build
Status: Professional
working on a 1934 D 28
a 39 000-28
a 47 000-29
and a 41 000-18
and a 34 000-19
not to mention abou 8 more modern guitars

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PostPosted: Mon Jan 20, 2020 8:53 pm 
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Brazilian Rosewood
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Joined: Fri Dec 14, 2007 3:21 pm
Posts: 3389
Location: Alexandria MN
First Mahogany topped guitar I have ever made is in finish. Double sides. It is also the first I have done with a strut support system for the headblock. Saw Tim McKnight at a guitar show and pretty much copied his technique. I am hoping it will add additional stability to my double tenon neck attachment system. I did bolt everything together and weighted the body with the headstock supported to mimic string tension and it didn't move much.

ImageIMG_3365 by Terence Kennedy, on Flickr

ImageIMG_3195 by Terence Kennedy, on Flickr

Also working on a new design, 15" archtop.

ImageIMG_3292 by Terence Kennedy, on Flickr

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These users thanked the author Terence Kennedy for the post: Pmaj7 (Tue Jan 21, 2020 12:00 am)
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PostPosted: Tue Jan 21, 2020 12:01 am 
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bluescreek wrote:
working on a 1934 D 28
a 39 000-28
a 47 000-29
and a 41 000-18
and a 34 000-19
not to mention abou 8 more modern guitars

John, are those reproductions or repairs?


Pat

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PostPosted: Tue Jan 21, 2020 2:36 am 
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Posts: 5498
First name: colin
Last Name: north
Country: Scotland.
Focus: Build
Status: Semi-pro
OMC and an SJ


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The name catgut is confusing. There are two explanations for the mix up.

Catgut is an abbreviation of the word cattle gut. Gut strings are made from sheep or goat intestines, in the past even from horse, mule or donkey intestines.

Otherwise it could be from the word kitgut or kitstring. Kit meant fiddle, not kitten.



These users thanked the author Colin North for the post: Michaeldc (Tue Jan 21, 2020 7:19 am)
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PostPosted: Tue Jan 21, 2020 5:45 am 
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Location: Somerset UK
State: West Somerset
Country: UK
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Nearing completion of a falcate braced steel string. American black Walnut with Sitka top. I am planning to do nut as well as saddle compensation and there was a lot of head scratching to decide on string length, given that the bridge position is fixed at an early stage in this design. We'll see if we got it right at the end!

Dave


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These users thanked the author Dave m2 for the post: Michaeldc (Tue Jan 21, 2020 7:19 am)
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PostPosted: Tue Jan 21, 2020 9:23 am 
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Location: Virginia
Nice work as usual from my fellow OLF'rs.

I've got a bunch of restoration work in before I start on my building schedule for 2020.

This is signed Modesto Borreguero and has what looks to be a confusing history of repairs.

Image


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PostPosted: Tue Jan 21, 2020 11:33 am 
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We bought a house last november, and it's been one project after another. The garage is pulling double duty as our gym and shop. I'm finally getting the shop side organized to the point that I can start working on a pair of guitars I'm very excited about. One is walnut/cedar, and the other is madi/adi.


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