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RE: Gilbert Tuning Machines (in reply to estebanana)
quote:
You can put lattice braced tops on the active structure and you still are in Spanish sound territory. Drop that on a static structure and it's something else. And also unlike a cello.
100% agreed. I don’t find my latticed braced guitars sound that much different from my fan braced.
Somehow the old Kohno bracing could be defined as lattice bracing. I used to own a nice Pedro Maldonado with lattice bracing and 2 closing bars. Quite similar to the bracing used by Tom Hmphrey. As Estebana said, the game changer has been the whole concept of rigid box introduced by Smallman (with laminated woods) matched with a ridiculously 0,7 mm thin cedar plate. The only flamenco I could try with a similar concept was a John Price guitar. Very powerful but it didn’t sound flamenco at all. A more recent game changer in the market is the double top (earlier made with a nomex core and more recently with balsa strips core). I never tried a double top flamenco guitar though. I have been told Andres Marvi makes a very strong sounding flamenco guitar with double sides and back. Gerardo plays one but again I’ve never had one in my hands, so I cannot confirm.
I would be too worried about delamination for a double top, although I guess that’s considered to be a solved problem.
But it would be a shame if the Such-and-such Guitar Quartet was forced to change their ticket to the So-and-so Kazoo Ensemble on arrival just because it was too hot in the cab on the way to the concert hall, lol.
I think some makers use double tops to obtain a marketing edge. My take on it is if you can’t build a killer guitar with solid wood then a double top isn’t going to save you. It might do the opposite. But it’s a completely different story for makers who are on their game, in those cases I don’t think it’s marketing, at all.
I would be too worried about delamination for a double top, although I guess that’s considered to be a solved problem.
I think some makers use double tops to obtain a marketing edge. My take on it is if you can’t build a killer guitar with solid wood then a double top isn’t going to save you. It might do the opposite. But it’s a completely different story for makers who are on their game, in those cases I don’t think it’s marketing, at all.
Using a proper epoxy and vacuum system is the secret. I was surprised with how simple the gluing operation is. I wish the rest of the double top construction were as simple. What has impressed me the most about the double tops isn't the volume (although they are loud) but the amazing trebles. If by some chance the top delaminated it would required re-topping, no different than if a solid top were caved in.
I've been turning over the idea of making laminated tops with bamboo stave sections instead of balsa. Bamboo is a better conductor of sound than Spruce and way better than hard balsa. The question is working out weight vs stiffness.
But overall I'm not an advocate of double tops; I'll leave it there lest I be chastised by the laminate makers.
RE: Gilbert Tuning Machines (in reply to estebanana)
quote:
ORIGINAL: estebanana But overall I'm not an advocate of double tops; I'll leave it there lest I be chastised by the laminate makers.
I wouldn't dream of chastising anyone for sticking with solid wood or any other new technology like lattice tops. We were dragged screaming to the idea of double tops by one of our customers. I'll stick with nomex laminates at this point since the results are impressive. Right now we're considering a double top / double back (both nomex core) with laminated sides. I have a large plank of Cocobolo that I bought about 35 years ago which would make an excellent candidate for this experiment. If I remember I'll post a photo of the latest double body/double top guitar when it's finished. We're waiting for the finish to harden enough for polishing then it will be on it's way to the customer.
Chat is good...Good for humor and comic relief...and good for airing out ideas, inspired by the original topic. IMHO I like reading what's posted, even if it is on a tangent. Amid it all, I learn a few things.
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RE: Gilbert Tuning Machines (in reply to SephardRick)
quote:
Chat is good...Good for humor and comic relief...and good for airing out ideas, inspired by the original topic. IMHO I like reading what's posted, even if it is on a tangent. Amid it all, I learn a few things.
RE: Gilbert Tuning Machines (in reply to estebanana)
quote:
ORIGINAL: estebanana
See what happens? Someone says double top and the party is over.
And I thought this list was about talking about what luthiers were doing. I'm thrilled with the new stuff we're doing...sorry it offends anyone (well not really).
RE: Gilbert Tuning Machines (in reply to jshelton5040)
John, I’m hoping you do have the time to post pictures of your latest double top. I’m truly interested. The concept has been endorsed by so many great makers - maybe not for Flamencos, but it’s all significant and interesting, IMO.
PS - I say maybe not for Flamencos because of the (possibly imagined) challenges presented by golpes. Have you considered making a double top flamenco? I’ve thought about leaving the golpe areas solid, but wonder if doing that isn’t pushing it too far into the territory of diminished returns.
I posted several videos of Phil Rosheger in the general section. His work came up and even though it's not flamenco it deserves a listen. You can also hear his excellent Ramirez cedar top, which sounds as good as anything I've heard recently.