#31
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So, as was said above: scalloped=concave; "parabolic"=convex; tapered=straight (but diminishing in height toward the rim). These are incomplete descriptions. For one thing, they usually only describe the central portion of the brace; e.g., a "tapered" brace may be scooped in a concave curve at its end. And as I said before, I hear some variations on how 'parabolic' and 'tapered' are used.
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"Still a man hears what he wants to hear, and disregards the rest." --Paul Simon |
#32
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This is the bracing on the deep OM I'm building. I didn't use any science when shaping these,and I have very little experience to pull from.
Based on what I've read around web, I've been using "tapered" to describe them, but it's not entirely accurate. I have intentionally avoided the "P" word, because it's not accurate, and is misleading. Disclaimer: This is the first top I have ever braced. It's probably way over braced (too much mass), but not having any experience to pull from, I decided to err on the side of caution. Please don't confuse this as an example of the 'right' way to brace a top. In fact assume the opposite! Last edited by Jim_H; 03-12-2009 at 11:56 AM. Reason: added disclaimer |
#33
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hmmmm, with all the hyperbole, perhaps they should be called "hyperbolic" braces instead
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Ibanez Artwood AC900 Eng/EIR Yamaha LL16 Eng/EIR Webber OM Eng/EIR ♫ Transcriptions (Yes, my PM Inbox is always full. For now, please send me an email at [my agf username]@gmail.com ) |
#34
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I hope you don't mind some unsolicited comments. The x-braces look like they are about 3/8" wide and about 5/8" tall at the intersection. That's wider than I'd use - about .280". Very nice and clean work you do. How thick is that Adi top? For an OM, I hope it is at .100" - not too much thicker. It should sound great, don't worry too much, unless your top is over .110" and your x-brace is 3/4" or taller. The bridge plate looks shifted down towards the heel to me, but I have no way of knowing. Make sure that the front of the bridge is positioned no less than 1/4" behind the front of the bridge plate. Too much fun. Be careful, it could be habit forming!
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“Reason is itself a matter of faith. It is an act of faith to assert that our thoughts have any relation to reality at all.” ― G.K. Chesterton |
#35
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The top is a little on the thick side, but more of a concern is thickness and width of the bridgeplate, and the weight (mass) of the braces around the bridgeplate. I wish I had solicited some feedback before I closed the box, but honestly, I'm fairly happy with it the way it is. If nothing else, it's pretty. I'll finish it up and see how it sounds Thanks, Jim H |
#36
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Beautiful work, Jim H!
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#37
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Hmmm. "Scalloped" to me means that it has a profile similar to a suspension bridge when viewed from the long side, that is one or more curves in the mid-section, and then getting shorter towards the ends.
"Tapered" means that the edge glued to the top or back is wider in *cross-section* than the opposite edge closest to the interior of the guitar. In other words, you could have a brace that is both scalloped and tapered. A "straight" brace is neither - it is about the same thickness from top to bottom, ignoring rounding, and has no scallops carved out along its length. Am I completely confused here? Jim's braces above look "straight" to me. The thickness doesn't vary much, and they're also not scalloped. Great looking work though! My Raimundo uses this type in the classical "fan" layout. -brian
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03 Raimundo 146 03 Almansa 435s "Senorita" 09 Silver Creek T-170 |
#38
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Thanks for all of the pics, guys......helps to clarify the comments.
Ryan |
#39
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I have no idea what the correct term for this is. There is no single word that I can use to describe them. I refuse to use the word 'parabolic', just because they aren't, and I don't want to give the impression that I'm trying to follow that model specifically. Curved, Tapered, Rounded... all are sorta accurate, and these terms are less specific than 'parabolic', so I'm more comfortable using them. I think the problem is we are all trying to use one word to describe something that can't be pinned down that easily. There are too many variables. |
#40
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Has anyone or any company ever tried bracing that wasn't straight, like interlocked semi-circles, "S" shapes, combination of straight and curved? May be a dumb question but just curious how far experiments have gone.
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