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| Radiusing the bridge plate http://www.luthiersforum.com/forum/viewtopic.php?f=10101&t=21091 |
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| Author: | Wes McMillian [ Tue Feb 17, 2009 3:01 pm ] |
| Post subject: | Radiusing the bridge plate |
This was born out of another thread I've got going on, but I wondering who radiuses their bridge plates and why. I guess it never struck me as something I should do, figuring the thin bridge plate would conform just fine to the dome of the top. I'm curious to hear from others about this, though. |
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| Author: | Michael Dale Payne [ Tue Feb 17, 2009 3:16 pm ] |
| Post subject: | Re: Radiusing the bridge plate |
Well if you don't the in the area around the bridge plate the dome is deformed to near flat. I am not saying at all that is a structurally bad thing. However It does make fitting your bridge to your top more forced fit, because you do not have the continuous dome shape. But in stead you have a flat between the X braces and dome outside them. This means that you bridge bottom can't be radiused to a continuous radius but rather needs to be left flat and the wings are stress down into contact with the top. This fact is the sole reason I radius my bridge plates prior to installing them. |
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| Author: | Barry Daniels [ Tue Feb 17, 2009 3:29 pm ] |
| Post subject: | Re: Radiusing the bridge plate |
The bridge plate will conform to a curve, but obviously the final curve of the top in that area will be a compromise. We radius everything else so why not radius your bridge plate? It only takes a couple of dozen swipes in the radius dish. |
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| Author: | Mike Collins [ Tue Feb 17, 2009 4:10 pm ] |
| Post subject: | Re: Radiusing the bridge plate |
I bend mine like sides on a hot iron. it's easy to fit & I can alter the bend if I'm doing some experiments. Plus I know I have a real good glue joint this way ! Sanding can make that small a piece have a less than perfect glue joint ! Mike |
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| Author: | Michael Dale Payne [ Tue Feb 17, 2009 5:31 pm ] |
| Post subject: | Re: Radiusing the bridge plate |
Mike Collins wrote: I bend mine like sides on a hot iron. it's easy to fit & I can alter the bend if I'm doing some experiments. Plus I know I have a real good glue joint this way ! Sanding can make that small a piece have a less than perfect glue joint ! Mike Bridge plate not the bridge right 
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| Author: | Wes McMillian [ Tue Feb 17, 2009 8:55 pm ] |
| Post subject: | Re: Radiusing the bridge plate |
Hmmm...I'll file this in my memory bank. Guess I've been doing it wrong the whole time! Thanks! |
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| Author: | Todd Rose [ Wed Feb 18, 2009 11:32 am ] |
| Post subject: | Re: Radiusing the bridge plate |
Thanks for calling attention to that issue, Todd. I'll make it a point to chamfer the free edges of my bridge plates more aggressively (my laminated bridge plates are also thinner than the average solid ones, and make a wider footprint north and south of the bridge). |
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