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Picture of OM and 000 side by side…
http://mowrystrings.luthiersforum.com/forum/viewtopic.php?f=10101&t=55797
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Author:  meddlingfool [ Fri Jul 28, 2023 3:58 pm ]
Post subject:  Picture of OM and 000 side by side…

I’m sure you know the one I mean where there’s half an OM and half a 000 put side by side to show where the upper bouts line up and the bridge lies in the lower bout?

It comes up here from time to time but damned if I can find it.

Anyone have that on their clipboard?

Author:  bcombs510 [ Fri Jul 28, 2023 4:26 pm ]
Post subject:  Picture of OM and 000 side by side…

Image

That one is 00, is that what you had in mind? I don’t recall seeing a 000/OM version of this, but I’m sure it exists somewhere? :)

Sent from my iPhone using Tapatalk Pro

Author:  meddlingfool [ Fri Jul 28, 2023 4:32 pm ]
Post subject:  Re: Picture of OM and 000 side by side…

That’s the one I was thinking, thanks! I’m assuming OM and 000 would line up likewise…

Author:  Pat Foster [ Fri Jul 28, 2023 8:09 pm ]
Post subject:  Re: Picture of OM and 000 side by side…

I put that composite together about ten years ago in Photshop, using photos from Martin's web site. It's an OM and 000. They had the most consistent camera positions for the photos of their guitars, but these still needed a little re-sizing to get the fret positions to match. Glad to see it's still useful.

Author:  meddlingfool [ Fri Jul 28, 2023 8:18 pm ]
Post subject:  Re: Picture of OM and 000 side by side…

Indeed it is and thanks for it!

Author:  jfmckenna [ Fri Jul 28, 2023 9:49 pm ]
Post subject:  Re: Picture of OM and 000 side by side…

As I understand it the only difference between the two is scale length. that image is one of a fourteen vs twelve fret guitar.

Author:  bcombs510 [ Fri Jul 28, 2023 10:16 pm ]
Post subject:  Re: Picture of OM and 000 side by side…

Sorry I confused it, Pat. I thought this was a 12 and 14 fret 00 side by side. :)


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Author:  Pat Foster [ Sat Jul 29, 2023 10:17 am ]
Post subject:  Re: Picture of OM and 000 side by side…

bcombs510 wrote:
Sorry I confused it, Pat. I thought this was a 12 and 14 fret 00 side by side. :)


Sent from my iPhone using Tapatalk Pro


That was my intent, if I recall, comparing a 14-fret with a 12-fret to show how close the bridge positions are between the two.

Author:  meddlingfool [ Sat Jul 29, 2023 10:34 am ]
Post subject:  Re: Picture of OM and 000 side by side…

Yeah I think it came up as a response to the constant ‘000’s have the bridge in the sweet spot’ conversation…

Author:  Pat Foster [ Tue Aug 01, 2023 9:34 pm ]
Post subject:  Re: Picture of OM and 000 side by side…

Here are a couple more from my computer's dusty corners
Attachment:
OM-vs-NB-OOO.jpg
. The OM 12/14 is the same as the one above. The second is a D-18S 12 fret over a 14 fret. Note that the D-18S has one more fret than the regular 14-fret dread. The third is a Norman Blake 000 beside an OM.

Attachment:
000-12-14.jpg


Attachment:
d1812-214.jpg


Attachment:
OM-vs-NB-OOO.jpg


edit: Something went wrong: the top pic is a duplicate. I can't edit it out.

Author:  Terence Kennedy [ Tue Aug 01, 2023 10:05 pm ]
Post subject:  Re: Picture of OM and 000 side by side…

Funny story. Years ago I started building a 000 12F from the StewMac plans. I blindly assumed it was a 24.9 scale. Made the fretboard for that scale but hadn’t braced the top.

I took a trip to the musical instrument museum in Vermillion SD at the University and they had a 30’s 000 on display. The description said it had a 25.4 scale. When I got home and checked the plans sure enough it did. Saved me from having to redo the top bracing.

Author:  meddlingfool [ Wed Aug 02, 2023 1:55 am ]
Post subject:  Re: Picture of OM and 000 side by side…

May I ask why you would have had to redo the top bracing?

Author:  Woodie G [ Wed Aug 02, 2023 4:57 am ]
Post subject:  Re: Picture of OM and 000 side by side…

These conversations can get confusing due to Martin's penchant for reusing nomenclature. I agree that the better title would be something like '12 and 14 Fret-to-Body Auditorium Size Martin Guitars Comparison'

The OM is a sub-class of 14 fret to body 000 guitars, and your shots from the way-back machine (I have seen those before!) do a nice job of covering the bridge and soundhole shifts.

We moved bracing between 000-14, OM, 000-12, and the Norman Blake (14 fret body with 12 fret neck) variants the shop built in 000 and 00 sizes to maintain the relationships between where the upper ends of the X land and the UTB landed, as well to support the bridge wings as desired. My recollection is that Gibson built 12, 13, and 14 fret versions of a few guitars and kept the same body shop with few changes in bracing, so there is likely some wiggle room.

Author:  bluescreek [ Wed Aug 02, 2023 1:38 pm ]
Post subject:  Re: Picture of OM and 000 side by side…

The OM is long scale and has scallop bracing it was the 1st production 14 fret instrument martin made OM uses 1/4 in braces 000 5/16 bracing
OM long scale 000 usually short scale

Author:  Clay S. [ Wed Aug 02, 2023 6:39 pm ]
Post subject:  Re: Picture of OM and 000 side by side…

bluescreek wrote:
The OM is long scale and has scallop bracing it was the 1st production 14 fret instrument martin made OM uses 1/4 in braces 000 5/16 bracing
OM long scale 000 usually short scale


The early 12 fret triple O's were long scale similar to the D-45 guitars, as Terence mentioned. When they pushed the upper bout down to make the 14 fret OM they kept the long scale. They made the OM for a few years (29-32?) and then went with the 24.9 scale and used the triple O designation for the 14 frets to body instruments of that size.

Author:  Woodie G [ Thu Aug 03, 2023 3:51 pm ]
Post subject:  Re: Picture of OM and 000 side by side…

We had a very early 1933 000-18 in for work a while back (neck reset, refret, bridge replacement with period-appropriate bridge)... identical to the OM-18, but for the neck block stamp.. Shade top, 1-3/4" nut on long scale bar fretted board, and 1940's belly bridge the only thing amiss. I suspect those long scale 000's had a lot more to do with excess OM parts than a desire to produce the 000 as long scale. It may also be that the switch to t-frets and t-bar neck reinforcement and the known trades between scale length and string weight was a factor (heavier strings were more common at that time).

Some of those banjo players that had lined up at the stage door with their Gibson L-5's, Model O's, and Carl Fisher model Martin plectrum guitars at the end of the 1920's likely moved to breadlines by early 1934, and Martin appears to have adjusted their product line with the new reality of the Great Depression and changing tastes in a range of different fields.

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