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PostPosted: Thu Apr 16, 2020 11:23 am 
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Walnut
Walnut

Joined: Sun Jul 29, 2018 11:43 am
Posts: 21
First name: David
Last Name: Scheckman
City: Plainfield
State: VT
Zip/Postal Code: 05667
Country: USA
Focus: Build
Status: Amateur
As I was laying out the bridge location on my current build (only my second) I realized I misplaced the bridge plate. Rather then centering it under the string holes I centered it under the saddle. So it’s about 1/4” off the standard location. There’s still plenty of plate ( 1/8” thick x 1 1/2” wide maple) where the sound holes will go through to protect the top. If I use a 1” wide bridge (pyramid) the lower side of the bridge will line up with the edge of the bridge plate. It’s a 00 size 12 fret short scale. Will this result in any significant issues with sound or structure? Thanks for any help.
David


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PostPosted: Thu Apr 16, 2020 11:52 am 
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Joined: Sat Dec 30, 2006 3:20 am
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Location: Powell River BC Canada
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As long as the pin holes have enough meat to support the ball ends, you should be fine. You could lighten up on the plate in the future. It does't really need to be that wide for a 1" bridge. And you could thickness down a bit. I use .100 and radius the plate.


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PostPosted: Thu Apr 16, 2020 12:07 pm 
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First name: Don
Last Name: Parker
City: Charleston
State: West Virginia
Zip/Postal Code: 25314
Country: USA
Focus: Build
Status: Amateur
So, there is bridge plate under the whole bridge? It should be fine. I once had the bridge plate so far off that I felt it wise to add another strip of bridge plate material up against it, so that there would be bridge plate under the whole bridge. I don't make that mistake any more.


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PostPosted: Thu Apr 16, 2020 1:02 pm 
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Walnut
Walnut

Joined: Sun Jul 29, 2018 11:43 am
Posts: 21
First name: David
Last Name: Scheckman
City: Plainfield
State: VT
Zip/Postal Code: 05667
Country: USA
Focus: Build
Status: Amateur
I could add a little width to the bridge in front of the saddle just to add glue surface. Is there a liability to doing that? The saddle to hole relationship would have to stay the same as in a traditional pyramid bridge to keep the bridge fully over the plate. I assume a traditional pyramid bridge has an acceptable break angle.


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PostPosted: Thu Apr 16, 2020 2:45 pm 
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Joined: Tue Dec 17, 2013 10:52 pm
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First name: Don
Last Name: Parker
City: Charleston
State: West Virginia
Zip/Postal Code: 25314
Country: USA
Focus: Build
Status: Amateur
I’m no expert, but I make my pyramid bridges 1 1/4” wide instead of 1” wide. I’m not trying to match an historic instrument; just building my own. I think it looks good, and I like the extra gluing surface area.


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PostPosted: Thu Apr 16, 2020 6:07 pm 
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Brazilian Rosewood
Brazilian Rosewood

Joined: Mon Jan 28, 2008 5:21 am
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Location: Central PA
First name: john
Last Name: hall
City: Hegins
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Zip/Postal Code: 17938
Country: usa
Focus: Build
Status: Professional
no need I have seen martins with the front of the bridge off the plate by almost 1/4 in it is more important you have ball end support on the plate

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blues creek guitars
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PostPosted: Thu Apr 16, 2020 6:56 pm 
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Walnut
Walnut

Joined: Sun Jul 29, 2018 11:43 am
Posts: 21
First name: David
Last Name: Scheckman
City: Plainfield
State: VT
Zip/Postal Code: 05667
Country: USA
Focus: Build
Status: Amateur
How about if the back end of the bridge hangs over the bridge plate? What would be the most overhang that is acceptable? Assuming the ball ends of the strings have good contact with the bridge plate.


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PostPosted: Thu Apr 16, 2020 7:05 pm 
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Brazilian Rosewood
Brazilian Rosewood

Joined: Mon Jan 28, 2008 5:21 am
Posts: 4905
Location: Central PA
First name: john
Last Name: hall
City: Hegins
State: pa
Zip/Postal Code: 17938
Country: usa
Focus: Build
Status: Professional
if the pins are secure on the plate overhang is minimal

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John Hall
blues creek guitars
Authorized CF Martin Repair
Co President of ASIA
You Don't know what you don't know until you know it


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