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| Cut-Offs and Scraps as Bridge Patches... http://www.luthiersforum.com/forum/viewtopic.php?f=10101&t=42015 |
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| Author: | sdsollod [ Fri Nov 22, 2013 5:36 pm ] |
| Post subject: | Cut-Offs and Scraps as Bridge Patches... |
I have a collection of cut-offs from backs and sides and various scraps that I was wondering if they would work as bridge patches. Some were intended for headplates. Most of these are quarter-sawn. Is it a bad idea to use quarter-sawn wood for bridge patches? ...otherwise, would these be suitable? -Cocobolo -Black limba -Ebony -Lacewood -Bubinga -Koa -African blackwood -Black Walnut I also have IRW, BRW, and Maple. I know they're good for bridge patches... Thanks, Steve |
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| Author: | Trevor Gore [ Fri Nov 22, 2013 7:35 pm ] |
| Post subject: | Re: Cut-Offs and Scraps as Bridge Patches... |
My bridge plates usually include CF, so the requirement reduces to hardness. So for mine that would take out koa and walnut at least. Blackwood and Ebony are plenty hard enough but very dense, so extra mass where you could do without it. Not a show stopper, though. Coco can be hard to glue, but otherwise good. Never used black limba, lacewood or bubinga, so can't say. |
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| Author: | sdsollod [ Fri Nov 22, 2013 7:55 pm ] |
| Post subject: | Re: Cut-Offs and Scraps as Bridge Patches... |
Maybe I should just stick with rosewood and maple... Thanks. |
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| Author: | DannyV [ Fri Nov 22, 2013 9:11 pm ] |
| Post subject: | Re: Cut-Offs and Scraps as Bridge Patches... |
Trevor Gore wrote: My bridge plates usually include CF, so the requirement reduces to hardness. So for mine that would take out koa and walnut at least. Blackwood and Ebony are plenty hard enough but very dense, so extra mass where you could do without it. Not a show stopper, though. Coco can be hard to glue, but otherwise good. Never used black limba, lacewood or bubinga, so can't say. Trevor, If you wouldn't mind. What sort of lay up do you do with CF? I deal with Dragonplate and they have such a variety of material it gets one imagination going. Thanks, Danny |
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| Author: | Trevor Gore [ Fri Nov 22, 2013 11:05 pm ] |
| Post subject: | Re: Cut-Offs and Scraps as Bridge Patches... |
I epoxy the soundboard where the bridge plate goes, put a layer of cloth down, wet it out then put the bridge plate on top of that. Some guys laminate up the bridge plate and cloth, then final shape the bridge plate when it's set up, then glue the laminate down. They do it that way because they find it easier to handle. I don't know anyone using pre-cast CF/epoxy sheet, but prepared properly, I don't see why you couldn't. |
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| Author: | Tai Fu [ Sat Nov 23, 2013 4:39 am ] |
| Post subject: | Re: Cut-Offs and Scraps as Bridge Patches... |
I just use whatever offcuts I can get that's approximately the hardness of rosewood (like Padauk, Bubinga, etc.). This means do not use mahogany! I orient the grain to be parallel with the soundboard, this hardens it against torque of the bridge and prevents that dreaded crack across the string holes on the bridge. I have not done it long enough to see how it will do long term however. For added insurance I guess you can always line the bridge plate with some brass sheet... |
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