D-03R Bracing (Pics!)

[didymus21]

I know that this stuff interests some of you.  Bracing of the D-03R that I'm looking to sell as compared to my Mcilroy A30c.  Note: Each individual picture is actually two pictures (one of upper bout, one of lower bout)

Larrivee D-03R



Mcilroy A30c



The Mcilroy has a thinner top, so more light was able to escape through the top.  I did mess with the contrast a little, though.

Hope someone finds this interesting.  Next time I have my hands on a L series Larrivee, I'll post it to this page. 

[olchip]

  Not only is it interesting, it's a fantastic idea I had never thought or heard of to see not just the bracing, but the thickness of the table as well!!! Thank you!
BTW, what light did you use?

[dermot]

and i'll add my OM19's henk-0-gram;


d.

[el guitana]

Grabbed these from somewhere - can't remember

[didymus21]

Grabbed these from somewhere - can't remember

That'd be from Frank Ford's webpage el guitana  (http://www.frets.com)

[didymus21]

and i'll add my OM19's henk-0-gram;


d.

Wow, Dermot.  OK, you did a much better job than me!.  I suppose having the strings off would warrant a little more freedom.  Did you take yours by putting a light into the soundhole and then completely covering the hole?  Did you mess with it in photoshop so that it'd come out brighter?  What kind of light source did you use?

I took my pictures by using a 220 lumen police light, by doing this:



I then took the picture without a flash in a pitch dark room.  Pretty quick and dirty way of getting the job done 



Forum members that are interested, please post pics of your guitars using either my method or dermot's so we can make a little bracing library here!  I'd really love to post a comparison between Dermot's OM-19 and someone's OM-60....

With JWB's help, I should be posting a L-09 40th anniversary model bracing pattern shortly......

[inspector13]

OK here is an x-ray of my OMV-70. Same bracing as the OMV-60.

[didymus21]

OK, I made it so they could be more easily compared...

Now...I thought the traditional series was supposed to have a somewhat different bracing pattern than the OM's, "Forward-shifted"....they don't look much different to me at all.  The tone bar appears to be a little higher on the OMV70 when compared to the OM19, but this could be due to the picture angle.  The only thing I can really see that is different is where the X-Bracing intersects the upper bout.  Other than that....maybe they are shaved a little different, something we wouldn't be able to see by looking at the joints....

Thanks for posting that Inspector! I really wanted to see yours "X-rayed"

[dermot]

So cool!

the two OM's do appear almost identical don't they? here they are overlayed and mixed 50%, the fast-N-dirty version;


I wonder if the braceing is more rounded inside the OM70 perhaps? they sure appear to share the same footprint for the braceing...

i may spend a few minuites in a 3D program that i am more comfortable with than P'shp and see how close i can get them to line up, and check out the bridge plates & bridge footprint...

cool... thanx for starting this!


i used my Nikon D70 on a time exposure of 8 seconds, with a 50mm prime, set WFO (f1.8), and the camera set at iso1600, using a halogen "power saver" bulb as they throw out very little heat

And some P'shp abuse as i have the camera set to shoot flat and with no sharpening, so i added my normal gamma curve, and mild bit of sharpening filter... i'm far from happy with it tho.. the best i have seen was done with a strobe and exposure compensation (also on a D70)

I'm not a stills photographer, i only know enough to get myself into trouble ;-))

more in a bit!

d.

[dermot]

And check out the Ac30's braceing beside my custom Martin 12 fret D's;

and the Martin;


to note.. they both have "A" frame, but the Martin's is much narrower, and lands just under the fingerboard, where the other Dermot's "A" frame goes almost to the neck join....  and both have a fraction of the braceing that the OM's & D03 have....

But it did take me twice as long to expose the Martin, making me think the Larrivee's tops are much thinner perhaps?

I don't have the tools to measure top thickness tho!

Ta,

d.

[didymus21]

I'm not sure why it took longer to expose your Martin (which by the way has some pretty unique bracing!) but I know the Mcilroy has one of the thinnest tops on the market. Per Dermot M. and compared to my own measuring...the A30's top is about 2mm.  The D-03R I have is closer to 3mm.  Not sure what your Martin would be.  My suggestion for a dirty measurement.....use the mm side of a ruler at the soundhole 

[dermot]

think i'll go ask UMGF what the typical top thickness is on a 16 series.. that's the closest to my custom.. and yea.. it's a poster child for minimal braceing.. bet the top thickness is up there tho, and far beyond your (beautiful) Micilroy

ta,

d.

[olchip]

  Yes, I love the idea!! I don't have a powerful enough flashlight though..But I'll post mine as soon as I can...

[dwils]

Wow!
Very high tech fellas ...
Clever idea and interesting to check out.

Now, let's just remember to PLAY our guitars, too OK?   



love this place.

devin