Gluing Top Braces
Do you glue top braces to a flat or radius surface when using a Go Bar deck?
|
That depends on whether you want a flat top or an arched top. If flat, glue braces on a flat surface: if arched, glue braces on an arched surface. That's regardless of how you chose to clamp them while the glue dries.
Seems pretty self-evident. Am I misunderstanding your question? |
Quote:
|
Quote:
Quote:
Quote:
I still don't understand what is your question. It seems like you already know the answer. Glue radiuses braces using a radiused dish: glue flat braces using a flat surface. |
Quote:
|
There are lots of anecdotes on this, one way and the other, but I'm not sure there's much actual data. Even 'identical' guitars made from 'the same' wood sound different, simply because it's a natural material and varies. I would hesitate to attribute a change in sound to some particular variable on the basis of a sample of two instruments. And, since all of us tend to hear what we expect to hear you'd have to do 'blind' tests.
I use arched bracing and radius dish throughout, but not for sound. Up here in New England the humidity and temperature changes so fast and so often, and swings so widely, that top and back cracks are the repairman's bread and butter. An arched top is less likely to split than a flat one, so using the radius dish is one way to keep the customers from coming back for the wrong reasons. ;) |
Quote:
https://i.imgur.com/Si7bi7f.jpg |
I think I read once that at Martin Guitars they either do, or used to, glue radiused braces by clamping them down flat so that when they released the clamps the top would spring into the radius of the braces. I've never tried this though and I wonder what the purpose of doing so would be for. It seems to me that as mentioned it would reduce the radius but I can't quite mentally picture that in my mind.
|
Gluing arched braces using a form of different radius won’t increase stiffness.
|
Quote:
|
Quote:
|
I think you’re confusing tension with stiffness
|
Quote:
https://i.imgur.com/bHxVwX9.jpg |
Quote:
In the old days at Martin, there was more spring back when gluing to a flat surface because the braces were not pre-scalloped. With pre-shaped bracing (CNC), I believe Martin uses radius dishes these days. I glue uncarved (rectangular) braces to a radiused surface, but not a dish. I cut the radius into a 2X4, and use those 1 1/2" wide pieces to back up the top in the go-bar deck. This is a simple and effective system, particularly useful since I employ a compound radius on my tops. |
Quote:
|
All times are GMT -6. The time now is 11:23 AM. |
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright ©2000 - 2022, The Acoustic Guitar Forum